LibRaw 0.22.0 TIFF Parser LibRaw::parse_tiff_ifd integer overflow

Summaryinfo

A vulnerability was found in LibRaw 0.22.0. It has been rated as problematic. The impacted element is the function LibRaw::parse_tiff_ifd of the component TIFF Parser. This manipulation causes integer overflow. This vulnerability is handled as CVE-2026-88387. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability has been found in LibRaw 0.22.0 and classified as problematic. Affected by this vulnerability is the function LibRaw::parse_tiff_ifd of the component TIFF Parser. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect availability. The summary by CVE is:

LibRaw 0.22.0 contains an incorrect numeric conversion vulnerability in LibRaw::parse_tiff_ifd() when processing TIFF tag 0x00fe (NewSubfileType). A specially crafted RAW, TIFF, or DNG file can supply an attacker-controlled NewSubfileType value outside the range of a signed int. The parser converts this value and narrows it to int without performing range validation. This out-of-range conversion triggers undefined behavior, resulting in process termination and denial of service.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-88387 since 09/10/2026. The exploitation appears to be easy. The attack can be launched remotely. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/24/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Image Processing Software

Name

• LibRaw

Version

• 0.22.0

License

• open-source

Website

• Product: https://github.com/LibRaw/LibRaw/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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