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Multiple LibRaw Vulnerabilities Lead to Denial of Service Risks

Multiple LibRaw Vulnerabilities Lead to Denial of Service Risks

First seen 10 Jul 2026, 06:55 UTC • •
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ThreatCluster AI
ThreatCluster •October 1, 2026 at 14:16 UTC
  • •LibRaw vulnerabilities could lead to denial of service and arbitrary code execution.
  • •Affected Ubuntu versions include 24.04 LTS and 25.04.
  • •Patches for the vulnerabilities were released shortly after their discovery.

Several vulnerabilities were discovered in the LibRaw library, affecting various versions of Ubuntu. These include issues with handling Nikon RAW files (CVE-2026-5342), integer overflow in the DNG image loader (CVE-2026-20884), and heap-based buffer overflows in the lossless JPEG image loader (CVE-2026-21413). Attackers could exploit these vulnerabilities to cause crashes or execute arbitrary code, leading to denial of service. The vulnerabilities were disclosed on April 2, 2026, and patches were made available for affected systems. Ubuntu versions 24.04 LTS and 25.04 are particularly impacted. Users are advised to update their systems to mitigate these risks.

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Timeline

2026-04-02
LibRaw vulnerabilities disclosed
Multiple vulnerabilities affecting LibRaw were publicly disclosed, including CVE-2026-5342 and CVE-2026-20884.
Ubuntu
2026-04-02
CVE-2026-5342 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-04-07
CVE-2026-21413 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-04-07
CVE-2026-20884 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-04-07
CVE-2026-24450 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-04-07
CVE-2026-20889 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-04-07
CVE-2026-24660 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-07-09
Security notice published
Ubuntu published a security notice detailing the vulnerabilities in LibRaw and recommended updates.
Linuxsecurity

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Common questions

Which versions of Ubuntu are affected?
Ubuntu 24.04 LTS and 25.04 are specifically affected by the LibRaw vulnerabilities.
What should I do to protect my system?
Update your system to the latest version of LibRaw as recommended in the security notices.
Are these vulnerabilities being actively exploited?
No confirmed exploitation has been reported; the vulnerabilities are disclosed and patched.