CVE-2026-76243Critical▾ Midnightstigmem 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…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 52.3 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Aug 20.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.4%
Last analysed / modified upstream
0.4% → 0.6%
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.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
stigmem-node < 0.9.0a2Patched in:
stigmem-node 0.9.0a2Connected by shared product, vendor, weakness, or advisory.
CVE-2026-76245Highstigmem (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
CVE-2026-76241Highstigmem-node 0.9.0a1 allows plugin signature enforcement to be disabled via a single configuration flag without a second explicit acknowledgment
CVE-2026-76242Criticalstigmem-node 0.9.0a1 accepts federation peer key material during peer registration without a separate administrator out-of-band fingerprint approval step
CVE-2026-76240Highstigmem-node 0.9.0a1 interpolates Postgres backend schema identifiers into SQL strings without defensive quoting
CVE-2026-76237Highstigmem-node before 0.9.0a12 contains a broken object level authorization (cross-tenant BOLA) vulnerability in the quarantine review endpoints
CVE-2026-76236Highstigmem-node before 0.9.0a12 contains a cross-tenant broken object level authorization (BOLA) flaw in the RTBF (right-to-be-forgotten) tombstone mechanism