Quick answers
- Is CVE-2026-76989 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-76989 being exploited in the wild.
- How severe is CVE-2026-76989?
- Medium severity, with a CVSS score of 5.3, published 20 August 2026.
- Which products and versions are affected?
- liftoff-sr CIPster 1802525be27d33e19a9a83c163e331a1d13b1892 and earlier.
- Is there a fix for CVE-2026-76989?
- A patch was published on 2026-08-20: Patch available as commit e8e9dba09bf56962807d3504b783ccdb6287f3e4 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-76989 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-76989?
- Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An out-of-bounds read vulnerability exists in the TCP Encapsulation Receive Path component (source/src/enet_encap/encap.cc) of CIPster. The vulnerability is triggered through remote network interaction without requiring authentication. The out-of-bounds read could allow an attacker to access adjacent memory regions, potentially leaking sensitive information or triggering a crash. A patch has been identified (commit e8e9dba09bf56962807d3504b783ccdb6287f3e4) and deployment is recommended.
Affected products
- liftoff-sr CIPster 1802525be27d33e19a9a83c163e331a1d13b1892 and earlier
Timeline
- 2026-08-20: disclosed
- 2026-08-20: patched: Patch available as commit e8e9dba09bf56962807d3504b783ccdb6287f3e4