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Fencer Intel
high 8.1

CVE-2026-20884 json

An integer overflow vulnerability exists in the deflate_dng_load_raw functionality of LibRaw Commit 8dc68e2.

published 7mo ago modified 3mo ago also EUVD-2026-19618 , JLSEC-2026-1113

cvss
8.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits
0
none known

Summary

An integer overflow vulnerability exists in the deflate_dng_load_raw functionality of LibRaw Commit 8dc68e2. A specially crafted malicious file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.

Patch / fix

  • julia LibRaw_jll 0.22.2+0
  • libraw Debian 12 0.20.2-2.1+deb12u2
  • libraw Debian 13 0.21.4-2+deb13u1
  • libraw Debian 14 0.22.1-1

debian advisories DEBIAN-CVE-2026-20884

  • libraw Ubuntu 22.04 LTS 0.20.2-2ubuntu2.22.04.3
  • libraw Ubuntu 24.04 LTS 0.21.2-2.1ubuntu0.24.04.2
  • libraw Ubuntu 26.04 LTS 0.21.5b-1ubuntu1.1

ubuntu advisories UBUNTU-CVE-2026-20884

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libraw SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES 15 SP5-LTSS +5 more 0.20.2-150400.3.21.1
  • libraw SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Workstation Extension 15 SP7 +2 more 0.21.1-150600.3.10.1

suse advisories SUSE-SU-2026:1556-1SUSE-SU-2026:1555-1

  • libraw openSUSE Leap 16.0 0.21.4-160000.3.1
  • libraw openSUSE Tumbleweed 0.22.1-1.1

opensuse advisories openSUSE-SU-2026:20574-1openSUSE-SU-2026:10565-1

  • libraw Alpine 3.24 0.22.2-r0

alpine advisories ALPINE-CVE-2026-20884

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Is CVE-2026-20884 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2026-20884 updated cvss 7.5

LibRaw: LibRaw: Arbitrary code execution via integer overflow in deflate_dng_load_raw

  • Red Hat Enterprise Linux 7 LibRaw
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 LibRaw
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Enterprise Linux 9 LibRaw
    not affected: vulnerable code not in execute path

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
none
Automatable
no
Technical impact
total
Assessed
7mo ago

Exploit prediction

0.59% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • talosintelligence.com https://talosintelligence.com/vulnerability_reports/TALOS-2026-2364 referenced PoC, tagged "exploit" by a source, unverified
  • talosintelligence.com https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2364 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
OSV 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
julia LibRaw_jll
>=0.22.1+0, <0.22.2+0
0.22.2+0

Affected products

  • LibRaw LibRaw

Classification

Weakness
  • CWE-190 Integer Overflow or Wraparound

References

Sources

Fencer Intel 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.