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Low 3.7Published Jan 27, 2026

CVE-2026-24883In 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).

Updated under an hour ago ()

Does this affect you?

It affects GnuPG and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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).

CVSS
3.7 LOW (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness (CWE)
CWE-476
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
mitre
NVD analysis
Analyzed
Record last updated
Jan 28, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
GnuPG GnuPG
gnupg:gnupg (from the name)
from 2.5.3 before 2.5.17
CNA record
gnupg gnupg
gnupg:gnupg
from 2.5.13 before 2.5.17
NVD
gpg4win gpg4win
gpg4win:gpg4win
from 5.0.0 before 5.0.1
NVD

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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