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No exploitation reportedFix available

CVE-2026-24883

No exploitation reported by the sources we read.

  • Published2026-01-27
  • Fixed in2.5.17
  • WeaknessCWE-476

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

In GnuPG before 2.5.17, a long signature packet length causes parse_signature to return success with sig->data[] set to a NULL value, leading to a denial of service (application crash).

Timeline

dates in UTC
  1. 2026-01-2719:16CVE publishedNVD

Versions per branch

NVD
Gnupg
BranchAffectedFixed in
2.5≥ 2.5.13, < 2.5.172.5.17
Gpg4win
BranchAffectedFixed in
5.0≥ 5.0.0, < 5.0.15.0.1

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As mitre, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • GnuPGother versions: not affected
    Affected
    • ≥ 2.5.3, < 2.5.17fixed in 2.5.17semver

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-01-28

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • gnupg2Mageia:9all versions · fixed in 2.3.8-1.5.mga9
  • gnupg2Echoall versions · fixed in 2.4.8-5
  • gpg2SUSE:Linux Micro 6.2all versions · fixed in 2.5.5-160000.4.1
  • gpg2SUSE:Linux Enterprise Server for SAP applications 16.0all versions · fixed in 2.5.5-160000.4.1
  • gpg2SUSE:Linux Enterprise Server 16.0all versions · fixed in 2.5.5-160000.4.1
  • gpg2openSUSE:Tumbleweedall versions · fixed in 2.5.17-1.1
  • gpg2openSUSE:Leap 16.0all versions · fixed in 2.5.5-160000.4.1

Vendor advisories

  • CVE-2026-24883 Red Hat Product Security15 known affected

    GnuPG: GnuPG: Denial of service due to specially crafted signature packet

    gnupg2 as a component of Red Hat Enterprise Linux 10 · gnupg2-smime as a component of Red Hat Enterprise Linux 10 · gnupg2.src as a component of Red Hat Enterprise Linux 10 · +12 more

Full record on NVD

Fix

  1. Update Gnupg to 2.5.17
  2. Workaround from the vendor Red Hat Product Security CVE-2026-24883 · 15 productsMitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
  3. No fix available, says the vendor Red Hat Product Security CVE-2026-24883 · 15 productsFix deferred

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Published
2026-01-27
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-7246-cvp4-g68w

Frequently asked questions

What is CVE-2026-24883?

In GnuPG before 2.5.17, a long signature packet length causes parse_signature to return success with sig->data[] set to a NULL value, leading to a denial of service (application crash).

Is CVE-2026-24883 actively exploited?

Active exploitation of CVE-2026-24883 has not been confirmed. Its EPSS score was 0.5% on 2026-11-04, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-24883?

CVE-2026-24883 has a CVSS v3 base score of 5.5 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

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Sources for this record