CVE-2026-5342

LibRaw TIFF/NEF decoders_libraw.cpp nikon_load_padded_packed_raw out-of-bounds

State: Published
Severity: 6.9 Medium
Published: Apr 2, 2026
Updated: Apr 7, 2026
Reserved: Apr 1, 2026

Description

A flaw has been found in LibRaw up to 0.22.0. This affects the function LibRaw::nikon_load_padded_packed_raw of the file src/decoders/decoders_libraw.cpp of the component TIFF/NEF. Executing a manipulation of the argument load_flags/raw_width can lead to out-of-bounds read. It is possible to launch the attack remotely. The exploit has been published and may be used. Upgrading to version 0.22.1 mitigates this issue. This patch is called b8397cd45657b84e88bd1202528d1764265f185c. It is advisable to upgrade the affected component.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P	VulDB
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C	VulDB
3.0	5.3 Medium	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C	VulDB
2.0	5.0 Medium	AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:OF/RC:C	VulDB

Weaknesses

CWE-125 Out-of-Bounds Read
CWE-119 Memory Corruption

Affected Products

Product	Versions
LibRawn/a	0.1Affected 0.2Affected 0.3Affected 0.4Affected 0.5Affected 0.6Affected 0.7Affected 0.8Affected 0.9Affected 0.10Affected 0.11Affected 0.12Affected 0.13Affected 0.14Affected 0.15Affected 0.16Affected 0.17Affected 0.18Affected 0.19Affected 0.20Affected 0.21Affected 0.22.0Affected 0.22.1Not affected

References

VDB-354671 | LibRaw TIFF/NEF decoders_libraw.cpp nikon_load_padded_packed_raw out-of-boundsvdb-entrytechnical-description
VDB-354671 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
Submit #781223 | LibRaw 0.22.0 Out-of-Bounds Readthird-party-advisory
https://github.com/LibRaw/LibRaw/issues/795issue-tracking
https://github.com/LibRaw/LibRaw/issues/795#issuecomment-4073769886issue-tracking
https://github.com/biniamf/pocs/tree/main/libraw_nikonpaddedexploit
https://github.com/LibRaw/LibRaw/commit/b8397cd45657b84e88bd1202528d1764265f185cpatch
https://github.com/LibRaw/LibRaw/releases/tag/0.22.1patch
https://github.com/LibRaw/LibRaw/product

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