CVE-2026-20889
- State
- Published
- Severity
- 9.8 Critical
- Published
- Apr 7, 2026
- Updated
- Jul 15, 2026
- Reserved
- Jan 26, 2026
Description
A heap-based buffer overflow vulnerability exists in the x3f_thumb_loader functionality of LibRaw Commit d20315b. A specially crafted malicious file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | talos |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | redhat-SADP |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
LibRawLibRaw |
|
References
- https://talosintelligence.com/vulnerability_reports/TALOS-2026-2358
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2358
- https://access.redhat.com/security/cve/CVE-2026-20889vdb-entry
- RHBZ#2455942issue-tracking
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-20889.json
- https://access.redhat.com/errata/RHSA-2026:13284vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:14224vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:14655vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:14673vendor-advisory
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.