by Kastro
Paper/Archive/CVE-2026-76243

CVE-2026-76243

eidetic-labs stigmem — stigmem before 0.9.0a2 Authentication Bypass via Disabled Auth

EPSS 0.6%CVSS 9.2
critical.is priorityof 100
37
CVSS 9.2 (CNA)9.2 / 10 × 3027.6Not in CISA KEV+300.0EPSS percentile 46.9.469 × 209.4No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

stigmem versions before 0.9.0a2 allow unauthenticated access when authentication is disabled on non-loopback deployments. Attackers can perform read, write, and federation operations with anonymous identity when nodes are exposed outside local development environments.

Affected

ProductAffectedFixed inSource
stigmem< 0.9.0a20.9.0a2CNA

Scores by source

VulnCheck (CNA)9.2CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

advisorygithub.com/eidetic-labs/stigmem/security/advisories/GHSA-fp6w-8wpg-74g5writeupvulncheck.com/advisories/stigmem-before-0a2-authentication-bypass-via-disabled-auth