Same Seed in PRNG Affecting synapse package, versions <1.147.1-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ALPINE323-SYNAPSE-15279227
- published13 Feb 2026
- disclosed12 Feb 2026
Introduced: 12 Feb 2026
CVE-2026-24044 (opens in a new tab)How to fix?
Upgrade Alpine:3.23 synapse to version 1.147.1-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream synapse package and not the synapse package as distributed by Alpine.
See How to fix? for Alpine:3.23 relevant fixed versions and status.
Element Server Suite Community Edition (ESS Community) deploys a Matrix stack using the provided Helm charts and Kubernetes distribution. The ESS Community Helm Chart secrets initialization hook (using matrix-tools container before 0.5.7) is using an insecure Matrix server key generation method, allowing network attackers to potentially recreate the same key pair, allowing them to impersonate the victim server. The secret is generated by the secrets initialization hook, in the ESS Community Helm Chart values, if both initSecrets.enabled is not set to false and synapse.signingKey is not defined. Given a server key in Matrix authenticates both requests originating from and events constructed on a given server, this potentially impacts confidentiality, integrity and availability of rooms which have a vulnerable server present as a member. The confidentiality of past conversations in end-to-end encrypted rooms is not impacted. The key generation issue was fixed in matrix-tools 0.5.7, released as part of ESS Community Helm Chart 25.12.1.