Timestamp Handling Mismatch in Stigmem Affects Federation Token Validation
CVE-2026-76245

7.1HIGH

Key Information:

Vendor

Eidetic-labs

Status
Stigmem
Vendor
CVE Published:
19 August 2026

What is CVE-2026-76245?

The stigmem-node package version 0.9.0a1 has a vulnerability related to timestamp-handling mismatches during federation peer-token validation. This flaw could lead to valid peer tokens being erroneously classified as expired, which in turn compromises the availability and reliability of authenticated federation flows. The issue has been resolved in version 0.9.0a2, which implements a canonical millisecond-based validation approach to ensure proper token validation.

Affected Version(s)

stigmem 0 < 0.9.0a2

stigmem 0.9.0a2

References

https://github.com/eidetic-labs/stigmem/security/advisori...
vendor-advisory
https://www.vulncheck.com/advisories/stigmem-federation-p...
third-party-advisory

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.