CVE-2026-32881
- Source
- https://cve.org/CVERecord?id=CVE-2026-32881
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-32881.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-32881
- Aliases
- Published
- 2026-03-20T01:18:55Z
- Modified
- 2026-10-21T02:52:32Z
- Severity
-
- 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
- Summary
- ewe has an Overly Permissive List of Allowed Inputs
- Details
-
ewe is a Gleam web server. ewe is a Gleam web server. Versions 0.6.0 through 3.0.4 are vulnerable to authentication bypass or spoofed proxy-trust headers. Chunked transfer encoding trailer handling merges declared trailer fields into req.headers after body parsing, but the denylist only blocks 9 header names. A malicious client can exploit this by declaring these headers in the Trailer field and appending them after the final chunk, causing request.set_header to overwrite legitimate values (e.g., those set by a reverse proxy). This enables attackers to forge authentication credentials, hijack sessions, bypass IP-based rate limiting, or spoof proxy-trust headers in any downstream middleware that reads headers after ewe.read_body is called. This issue has been fixed in version 3.0.5.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-183" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32881.json" }- References
-
- https://github.com/vshakitskiy/ewe/releases/tag/v3.0.5
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32881.json
- https://github.com/vshakitskiy/ewe/security/advisories/GHSA-9w88-79f8-m3vp
- https://nvd.nist.gov/vuln/detail/CVE-2026-32881
- https://github.com/vshakitskiy/ewe/commit/07dcfd2135fc95f38c17a9d030de3d7efee1ee39
- https://github.com/vshakitskiy/ewe/commit/94ab6e7bf7293e987ae98b4daa51ea131c2671ba
Affected packages
Git / github.com/vshakitskiy/ewe
Affected ranges
- Type
- GIT
- Repo
- https://github.com/vshakitskiy/ewe
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "0.6.0" }, { "fixed": "3.0.5" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "fixed": "07dcfd2135fc95f38c17a9d030de3d7efee1ee39" } ], "source": "REFERENCES_COMMIT" }, { "range": [ { "fixed": "94ab6e7bf7293e987ae98b4daa51ea131c2671ba" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "v3.0.5", "range": [ { "fixed": "25a0d3d527954394415630544a3138068a4a4f88" } ], "source": "REFERENCES_TAG" } ] }