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01 Record

CVE-2026-94456

Unauthenticated recovery of the Math.random() state behind OAuth tokens, authorization codes, client secrets and organization API keys

CriticalPUBLISHEDCNA: postiz
CNA base score9.1 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
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02 Description

Unauthenticated recovery of the Math.random() state behind OAuth tokens, authorization codes, client secrets and organization API keys

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.52% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 44.0% of scored records. A rank, not a probability.
NVD base score
9.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
NVD analysis status
Awaiting Analysis. NVD last modified this record on 2026-09-22.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-09-22 16:11Z1 MO AGO
Last updated
2026-09-22 18:11Z1 MO AGO
Reserved
2026-09-21
Assigning CNA
postiz
Record state
PUBLISHED
Severity
Critical (CVSS 9.1)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weaknesses
  • CWE-330Use of Insufficiently Random ValuesClass
  • CWE-338Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)Base
  • CWE-341Predictable from Observable StateBase
Data version
5.2
Document digest
8d3fa3b2d66b283f70d100d5d58b9de5bd9cc6cb557680d587738eadef85e51f

05 Affected products

VendorProductVersionsPlatforms
GitroomHQpostiz-app0 to < 2.4.0—

06 References

07 Remediation

Run a Postiz release in which security-sensitive identifiers are generated from a cryptographically secure random source rather than from Math.random(). No fixed release is available at the time of writing; this advisory will record the fixed version once one is published.

Once running a release with a corrected generator, treat every credential issued by an affected version as compromised and replace it. That covers organization API keys, OAuth application client secrets, and any outstanding OAuth access tokens and authorizations. Outstanding authorization codes are short-lived and expire on their own.

Operators who connected social accounts while running an affected version should review those connections, since the PKCE verifiers used to establish them were drawn from the same generator.