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VulnerabilityPublished

CVE-2026-94456: GitroomHQ postiz-app · CWE-338

Affects GitroomHQ postiz-appSource CVE Database V5

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Not known to be exploited · CVSS 9.1 Critical : upgrade to 2.4.0 as a priority.

Data as of 5 Nov 2026, 00:01 UTC

CVSS 3.1 base score
9.1Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.5% chance of exploitation in 30 days – higher than 44% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.4.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

What to do

Upgrade GitroomHQ postiz-app to 2.4.0.

Affected software

ProductAffectedFixed in
GitroomHQpostiz-appAffected
  • <2.4.0
Fixed in
  • 2.4.0
GitHubpostiz-apppkg:github/postiz-appOther threatsAffected
  • <2.4.0
Fixed in
  • 2.4.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

If you cannot patch yet, avoid using affected versions of postiz-app. Consider restricting access to the OAuth dynamic client registration endpoint or implementing additional monitoring to detect suspicious activity related to credential generation.

Description

Postiz-app versions before 2.4.0 generate security-sensitive credentials using a non-cryptographically secure pseudorandom number generator (Math.random()), exposing OAuth tokens and keys to compromise. An unauthenticated OAuth dynamic client registration endpoint leaks client credentials, enabling attackers to reconstruct the PRNG internal state and predict past and future credentials. This vulnerability has a critical severity with a CVSS score of 9.1.

References

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