Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2023-32636

CVE-2023-32636HIGH

glib glib — A flaw was found in glib, where the gvariant deserialization code is vulnerable to a denial of service introduced by additional input val…

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  N  N  H    7.5   .0079   55.5     —

AFFECTED
  Product  Versions  Fixed
  glib     2.75.1 –  —

TIMELINE
  May 30  Reserved by redhat
  Sep 14  Published (CNA: redhat)
  Oct 15  RESCORED — CVE-2023-32636 (glib). CVSS 4.7 → 7.5 (NVD).

CWE-502, CWE-400 · CNA: redhat · CVSS v3.1 · 4 references · NVD status: Modified

Description

A flaw was found in glib, where the gvariant deserialization code is vulnerable to a denial of service introduced by additional input validation added to resolve CVE-2023-29499. The offset table validation may be very slow. This bug does not affect any released version of glib but does affect glib distributors who followed the guidance of glib developers to backport the initial fix for CVE-2023-29499.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
May 30, 2023	Reserved	Reserved by redhat
September 14, 2023	Published	Published (CNA: redhat)
October 15, 2026	RESCORED	RESCORED — CVE-2023-32636 (glib). CVSS 4.7 → 7.5 (NVD).

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
glib	glib	—	2.75.1	—

Weaknesses

CWE-502 · CWE-400

References (4)

https://cert-portal.siemens.com/productcert/html/ssa-398330.html
https://gitlab.gnome.org/GNOME/glib/-/issues/2841 [Issue Tracking, Vendor Advisory]
https://https://discourse.gnome.org/t/multiple-fixes-for-gvariant-normalisation-issues-in-glib/12835 [Broken Link]
https://security.netapp.com/advisory/ntap-20231110-0002/ [Third Party Advisory]

Authoritative record: CVE-2023-32636 at cve.org

Vendors: glib

Weaknesses: CWE-502 · CWE-400

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2023-32636 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.