OSV-2026-958 Use-of-uninitialized-value in LibRaw::fbdd

Not scored Published

An attacker can cause a denial of service in applications using LibRaw by triggering a use-of-uninitialized-value error during image processing.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Not stated
Victim action needed
Not needed
Fix
None listed

What is OSV-2026-958?

OSV-2026-958 is a vulnerability in libraw, published on 23 Jun 2026.

Official description

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=526284076

Crash type: Use-of-uninitialized-value
Crash state:
LibRaw::fbdd
LibRaw::dcraw_process
libraw_fuzzer.cc

Which versions are affected by OSV-2026-958?

1 open source package ship an affected version, including libraw.

PackageAffectedFixed in
libraw OSS-FuzzAll versionsNone

How do I fix OSV-2026-958?

No fix has been published for OSV-2026-958 yet. Limit exposure of the affected software until one is available.

Is OSV-2026-958 being exploited?

There is no known exploitation of OSV-2026-958 in the wild and no public exploit code.

Sources

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