Vulnerability · Published Apr 7, 2026 · Assigned by talos
CVE-2026-20911
Critical 9.8
In plain English
A critical-severity buffer overflow in LibRaw from LibRaw. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.6%top 49.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A heap-based buffer overflow vulnerability exists in the HuffTable::initval functionality of LibRaw Commit 0b56545 and 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.24 | libraw | 0.22.1-r0 | ALPINE-CVE-2026-20911 |
| Debian:14 | libraw | 0.22.1-1 | DEBIAN-CVE-2026-20911 |
| Ubuntu:22.04:LTS | darktable | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:24.04:LTS | darktable | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:25.10 | darktable | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:26.04:LTS | darktable | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:26.10 | darktable | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:22.04:LTS | dcraw | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:24.04:LTS | dcraw | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:25.10 | dcraw | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:26.04:LTS | dcraw | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:26.10 | dcraw | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:24.04:LTS | digikam | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:25.10 | digikam | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:26.04:LTS | digikam | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:26.10 | digikam | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:22.04:LTS | exactimage | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:24.04:LTS | exactimage | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:25.10 | exactimage | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:26.04:LTS | exactimage | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:26.10 | exactimage | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:22.04:LTS | kodi | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:24.04:LTS | kodi | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:25.10 | kodi | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:26.04:LTS | kodi | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:26.10 | kodi | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:22.04:LTS | rawtherapee | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:24.04:LTS | rawtherapee | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:25.10 | rawtherapee | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:26.04:LTS | rawtherapee | no fix listed | UBUNTU-CVE-2026-20911 |
| Ubuntu:26.10 | rawtherapee | no fix listed | UBUNTU-CVE-2026-20911 |
Affected products (as reported)
Weakness: CWE-131, CWE-120 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://talosintelligence.com/vulnerability_reports/TALOS-2026-2330
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2330
- https://access.redhat.com/security/cve/CVE-2026-20911 vdb-entry, x_refsource_REDHAT
- RHBZ#2455959 issue-tracking, x_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-20911.json x_sadp-csaf-vex