CVE-2026-114216
- Source
- https://cve.org/CVERecord?id=CVE-2026-114216
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-114216.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-114216
- Aliases
-
- EEF-CVE-2026-114216
- GHSA-w5wc-g2hc-g7m2
- Downstream
- Published
- 2026-10-26T13:30:41Z
- Modified
- 2026-10-28T02:52:21Z
- Severity
-
- 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N CVSS Calculator
- Summary
- Chunk extensions accept bare LF and CR, enabling request smuggling in Bandit
- Details
-
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in the HTTP/1.1 chunked body reader of mtrudel bandit allows an unauthenticated remote attacker to smuggle a second request past a front-end proxy via a chunk extension that contains a bare LF.
The chunked reader in lib/bandit/http1/socket.ex takes the chunk-size line to be everything up to the first CRLF and discards everything after ; without checking it against the RFC 9112 chunk-ext grammar, so bare LF, bare CR and other control bytes pass. A proxy that ends the size line at a bare LF reads 2;\nxx\r\n40\r\n... as one request whose second chunk holds a GET /admin, while Bandit ends the body early and dispatches GET /admin as a separate pipelined request. Deployments without such a proxy in front of Bandit are not affected.
This issue affects bandit: from 1.12.4 before 1.14.0.
- Database specific
{ "cna_assigner": "EEF", "cwe_ids": [ "CWE-444" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114216.json" }- References
-
- https://cna.erlef.org/cves/CVE-2026-114216.html
- https://github.com
- https://osv.dev/vulnerability/EEF-CVE-2026-114216
- https://repo.hex.pm
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114216.json
- https://github.com/mtrudel/bandit/security/advisories/GHSA-w5wc-g2hc-g7m2
- https://nvd.nist.gov/vuln/detail/CVE-2026-114216
- https://github.com/mtrudel/bandit/commit/220b9dfd27f9a21305be2afc75cbe585ddc24e7a
- https://github.com/mtrudel/bandit/commit/c31e9e3c76dcbfc239a96eabed5341ced7885ae5
- https://github.com/mtrudel/bandit
Affected packages
Git / github.com/mtrudel/bandit
Affected ranges
- Type
- GIT
- Repo
- https://github.com/mtrudel/bandit
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "c31e9e3c76dcbfc239a96eabed5341ced7885ae5" }, { "fixed": "220b9dfd27f9a21305be2afc75cbe585ddc24e7a" } ], "source": "AFFECTED_FIELD", "strategy": "StandardRange" }, { "range": [ { "introduced": "1.12.4" }, { "fixed": "1.14.0" } ], "source": "AFFECTED_FIELD", "strategy": "StandardRange" }, { "range": [ { "fixed": "c31e9e3c76dcbfc239a96eabed5341ced7885ae5" } ], "source": "REFERENCES_COMMIT" }, { "range": [ { "fixed": "220b9dfd27f9a21305be2afc75cbe585ddc24e7a" } ], "source": "REFERENCES_COMMIT" } ] }