5.1

CVE-2026-23868: giflib_project giflib Double Free

CVSS: 5.1v3.1MediumModified
AliasesMGASA-2026-0103SUSE-SU-2026:1338-1RHSA-2026:19154
Published 10-03-2026Last modified 15-07-2026
Open JSON

Vulnerability summary

CVE-2026-23868 is a medium (CVSS 5.1) Double Free vulnerability in giflib_project giflib. EPSS estimates a 0.15% chance of exploitation in the next 30 days, higher than 3.7% of scored vulnerabilities.

Overall risk
20/100
0100
Low · default modelHow is this calculated?
CVSS score
5.1/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.15%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 2
SUSE-SU-2026:1005-1USN-8583-1

Timeline

  1. 10-03-2026
    PublishedVulnerability first disclosed.
  2. 15-07-2026
    Last modifiedVulnerability information updated.

Description

Giflib contains a double-free vulnerability that is the result of a shallow copy in GifMakeSavedImage and incorrect error handling. The conditions needed to trigger this vulnerability are difficult but may be possible.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.15%

Chance of exploitation in the next 30 days

Percentile

4%

Versus all other CVEs

30-day change

+0.01 pp

From 0.14% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.15%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Redhat6 products
  • giflib< 0:5.2.1-24.el10_2 | < 0:5.2.1-10.el9_8.1 | < 0:5.2.1-22.el10_1.1 | < 0:5.2.1-9.el9_7.1 | < 0:5.1.4-4.el8_10 | < 0:4.1.6-9.el7_9.1 | < 0:5.1.4-3.el8_2.1 | < 0:5.1.4-3.el8_4.1 | < 0:5.1.4-3.el8_8.1 | < 0:5.1.4-3.el8_6.1 | < 0:5.2.1-22.el10_0.1 | < 0:5.2.1-9.el9_0.1 | < 0:5.2.1-9.el9_2.1 | < 0:5.2.1-9.el9_6.1 | < 0:5.2.1-9.el9_4.1
  • giflib-debuginfo< 0:5.2.1-24.el10_2 | < 0:5.2.1-10.el9_8.1 | < 0:5.2.1-22.el10_1.1 | < 0:5.2.1-9.el9_7.1 | < 0:5.1.4-4.el8_10 | < 0:4.1.6-9.el7_9.1 | < 0:5.1.4-3.el8_2.1 | < 0:5.1.4-3.el8_4.1 | < 0:5.1.4-3.el8_8.1 | < 0:5.1.4-3.el8_6.1 | < 0:5.2.1-22.el10_0.1 | < 0:5.2.1-9.el9_0.1 | < 0:5.2.1-9.el9_2.1 | < 0:5.2.1-9.el9_6.1 | < 0:5.2.1-9.el9_4.1
  • giflib-debugsource< 0:5.2.1-24.el10_2 | < 0:5.2.1-10.el9_8.1 | < 0:5.2.1-22.el10_1.1 | < 0:5.2.1-9.el9_7.1 | < 0:5.1.4-4.el8_10 | < 0:5.1.4-3.el8_2.1 | < 0:5.1.4-3.el8_4.1 | < 0:5.1.4-3.el8_8.1 | < 0:5.1.4-3.el8_6.1 | < 0:5.2.1-22.el10_0.1 | < 0:5.2.1-9.el9_0.1 | < 0:5.2.1-9.el9_2.1 | < 0:5.2.1-9.el9_6.1 | < 0:5.2.1-9.el9_4.1
  • giflib-devel< 0:5.2.1-24.el10_2 | < 0:5.2.1-10.el9_8.1 | < 0:5.2.1-22.el10_1.1 | < 0:5.2.1-9.el9_7.1 | < 0:5.1.4-4.el8_10 | < 0:4.1.6-9.el7_9.1 | < 0:5.2.1-22.el10_0.1 | < 0:5.2.1-9.el9_6.1 | < 0:5.2.1-9.el9_4.1
  • giflib-utils< 0:4.1.6-9.el7_9.1
Opensuse3 products
  • giflib&distro=openSUSE Leap 15.6< 5.2.2-150000.4.19.1
  • giflib&distro=openSUSE Leap 16.0< 5.2.2-160000.3.1
  • giflib&distro=openSUSE Tumbleweed< 5.2.2-3.1
Debian1 product
  • giflib< 5.2.1-2.5+deb12u1 | < 5.2.2-1+deb13u1 | < 6.1.3-1
Giflib1 product
Giflib_project1 product
Mageia1 product
  • giflib< 5.2.1-7.3.mga9
Suse1 product
  • giflib&distro=SUSE Linux Enterprise Module for Basesystem 15 SP7< 5.2.2-150000.4.19.1
Ubuntu1 product
  • giflibAll versions (No fix recorded) | < 5.1.9-2ubuntu0.3 | < 5.2.2-1ubuntu1.2 | < 5.2.2-1ubuntu3.2

8 vendors · 15 products

References

54 links
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