CVE-2026-58490Tracecat: Unsigned SAML response accepted in Docker Compose SAML deployments due to empty signing defaults
- 9.8CriticalCVSS base score
- 0.34%Exploitation in 30 daysEPSS · top 72% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Tracecat is an open-source security automation platform for teams and AI agents. From version 0.37.0 until 1.0.0-beta.49, Docker Compose deployments with SAML enabled can render SAML_SIGNED_ASSERTIONS and SAML_SIGNED_RESPONSES as empty values, overriding secure application defaults and disabling both signature requirements. An unauthenticated attacker who can reach the SAML assertion consumer endpoint can submit a forged unsigned response for an existing Tracecat user email address and obtain that user’s session. Targeting an existing superadmin can result in superadmin account takeover. Exploitation does not create users when SAML user creation is disabled and does not affect default Fargate or Helm deployments. Version 1.0.0-beta.49 removes the insecure deployment pass-through and requires signed assertions and responses.
Timeline
ID reserved
By GitHub_M
- 4 months later
· 4 months later
Published
- 3 days later
· 3 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 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Deferred | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.34% · top 72% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Affected products
- affected >= 0.37.0, < 1.0.0-beta.49
References
References8
- https://github.com/TracecatHQ/tracecat/security/advisories/GHSA-6g53-h6fh-c3pj (opens in a new tab)x_refsource_CONFIRM
- https://github.com/TracecatHQ/tracecat/pull/2824 (opens in a new tab)x_refsource_MISC
- https://github.com/TracecatHQ/tracecat/pull/2825 (opens in a new tab)x_refsource_MISC
- https://github.com/TracecatHQ/tracecat/pull/2826 (opens in a new tab)x_refsource_MISC
- https://github.com/TracecatHQ/tracecat/commit/018258ba6a17c36cbfa7ca977526c34fb6afc35f (opens in a new tab)x_refsource_MISC
- https://github.com/TracecatHQ/tracecat/commit/a97aafbfd667a6b9a3b7b524e1c1bfa9d8c59779 (opens in a new tab)x_refsource_MISC
- https://github.com/TracecatHQ/tracecat/commit/dab64eb7ac0eb2088783ca14f4cb2d058547bfff (opens in a new tab)x_refsource_MISC
- https://github.com/TracecatHQ/tracecat/releases/tag/1.0.0-beta.49 (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)
- EUVD EUVD-2026-118485 (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://cveledger.app/cve/CVE-2026-58490)Record last updated .