What’s Vulnerable › Vulnerabilities

CVE-2026-20889

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-04-07 · updated 2026-07-15
• Weakness: CWE-190

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.

Affected products

• LibRaw: 0.22.0

References

• https://talosintelligence.com/vulnerability_reports/TALOS-2026-2358
• https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2358
• https://access.redhat.com/errata/RHSA-2026:13284
• https://access.redhat.com/errata/RHSA-2026:14224
• https://access.redhat.com/errata/RHSA-2026:14655
• https://access.redhat.com/errata/RHSA-2026:14673
• https://access.redhat.com/security/cve/CVE-2026-20889
• https://bugzilla.redhat.com/show_bug.cgi?id=2455942
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-20889.json

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