CVE-2026-76245Network attack vector

Federation flow interruption via timestamp mismatch

Published Aug 19, 2026 · Updated Aug 20, 2026

Authentication failure in Eidetic Labs Stigmem 0.9.0a1 allows remote authenticated users to interrupt federation flows via peer-token timestamp mismatch. The federation validation logic in peer_auth.py and peer_token.py does not enforce one canonical epoch unit, so valid tokens minted on a different seconds-versus-milliseconds path are rejected as expired. Only nodes using federation peer authentication are exposed, and the consequence is failed authenticated federation requests rather than token forgery, data disclosure, or state changes.

CVSS severity7.1
High
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication failure in Eidetic Labs Stigmem 0.9.0a1 allows remote authenticated users to interrupt federation flows via peer-token timestamp mismatch. The federation validation logic in peer_auth.py and peer_token.py does not enforce one canonical epoch unit, so valid tokens minted on a different seconds-versus-milliseconds path are rejected as expired. Only nodes using federation peer authentication are exposed, and the consequence is failed authenticated federation requests rather than token forgery, data disclosure, or state changes.

The record

CVE
CVE-2026-76245
Published
Aug 19, 2026
Updated
Aug 20, 2026
Vendor
Eidetic Labs
Product
Stigmem
Classifications
CWE-345
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <0.9.0a2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Eidetic Labs · Stigmemversion=0 <0.9.0a2

Published CVSS scores

7.1GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-345Insufficient Verification of Data Authenticity

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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