CVE-2026-57229
Suricata smtp/mime: incomplete state reset allows detection bypass
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, the SMTP MIME parser in rust/src/mime/smtp.rs does not fully reset state when processing Content-Type: message/rfc822 encapsulation. An outer MIME part's encoding or filename state can leak into the inner message, allowing crafted mail to evade detections based on file.data, file.name, or extracted URLs when SMTP MIME decoding is enabled. This issue is fixed in version 8.0.6.
Timeline
ID reserved
By GitHub_M
- 3 months later
· 3 months later
Published
- 7 days later
· 7 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| NVDNVD · Analyzed | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.41% · top 64% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Weakness
Affected products
References (5)
- https://github.com/OISF/suricata/security/advisories/GHSA-ph5p-pm8r-m355 (opens in a new tab)x_refsource_CONFIRM
- https://github.com/OISF/suricata/commit/4985eb9daea2f765b6ef59a58fa02e5c71c0a77c (opens in a new tab)x_refsource_MISC
- https://github.com/OISF/suricata/commit/c0215c7e175b0000ef8450928dd1f3453c48379b (opens in a new tab)x_refsource_MISC
- https://github.com/OISF/suricata/releases/tag/suricata-8.0.6 (opens in a new tab)x_refsource_MISC
- https://redmine.openinfosecfoundation.org/issues/8649 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-57229)Record last updated .