Skip to content
Fencer Vulns
medium 5.5

CVE-2026-88387 json

LibRaw 0.22.0 contains an incorrect numeric conversion vulnerability in LibRaw::parse_tiff_ifd() when processing TIFF tag 0x00fe (NewSubfil…

published 2026-09-24 46 d ago modified 2026-09-29 41 d ago also EUVD-2026-86473

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 7%
public exploits
0
none known

Summary

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.

Patch / fix

  • libraw SLE Workstation Extension 15 SP7, SLE Module for Package Hub 15 SP7, SLE Module for Desktop Applications 15 SP7 0.21.1-150600.3.13.1

suse advisories SUSE-SU-2026:4829-1

  • libraw openSUSE Tumbleweed 0.22.2-2.1

opensuse advisories openSUSE-SU-2026:11933-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-88387 updated cvss 5.5

LibRaw: LibRaw: Denial of Service via improper numeric conversion

  • Red Hat Enterprise Linux 7 LibRaw, LibRaw 0.21.4-3.el10_2 Red Hat Enterprise Linux 8 LibRaw, LibRaw 0.21.4-3.el10_2 Red Hat Enterprise Linux 9 LibRaw, LibRaw 0.21.4-3.el10_2 Red Hat Enterprise Linux 10 LibRaw 0.21.4-3.el10_2
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
41 d ago

Exploit prediction

0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/LibRaw/LibRaw/issues/844 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Classification

Weakness
  • CWE-681 Incorrect Conversion between Numeric Types

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.