CVE-2026-76245
stigmem Federation Peer Token Timestamp Validation Bypass
- State
- Published
- Severity
- 7.1 High
- Published
- Aug 19, 2026
- Updated
- Aug 20, 2026
- Reserved
- Aug 19, 2026
Description
stigmem (pip package stigmem-node) version 0.9.0a1 contains a timestamp-handling mismatch in federation peer-token validation that can cause valid peer tokens to be incorrectly treated as expired. This affects the availability and reliability of authenticated federation flows on nodes using federation peer authentication paths. The issue is fixed in 0.9.0a2, which uses the canonical millisecond-based validation path.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
Weaknesses
- CWE-345 Insufficient Verification of Data Authenticity
Affected Products
| Product | Versions |
|---|---|
stigmemeidetic-labs |
|
References
- GitHub Security Advisory (GHSA-xh5j-xjfq-qvvx)vendor-advisory
- VulnCheck Advisory: stigmem Federation Peer Token Timestamp Validation Bypassthird-party-advisory
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