# CVE-2026-81893 — Red Hat Enterprise Linux 10

> As of 2026-08-28, CVE-2026-81893 is a MEDIUM-severity vulnerability in Red Hat Enterprise Linux 10, CVSS v3.1 4.7, EPSS 0.1% (1.5th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-81893 as of 2026-08-28; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-08-28

## What is CVE-2026-81893?

A flaw was found in gdk-pixbuf. When loading a specially crafted JPEG image containing chunked ICC profile markers, an error during ICC profile parsing can leave stale size metadata after the profile buffer is freed. A subsequent allocation in the same decode can cause an out-of-bounds write, potentially crashing the application. To exploit this flaw, an application using gdk-pixbuf must process the malicious JPEG image. Affected version >= 2.26.4

The record classifies CVE-2026-81893 under weakness class [CWE-787](https://intel.threadlinqs.com/cwe/CWE-787). Its CVSS v3 base vector states that the flaw requires local access to the host, needs no prior authentication, needs a user to take an action first, and has high impact on availability. 5 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 39 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 4.7 — MEDIUM (`CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H`)
- **EPSS (FIRST):** 0.1% probability of exploitation in the next 30 days, higher than 1.5% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 2.4/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-08-27, last modified 2026-08-28

## Is CVE-2026-81893 being exploited?

It currently carries a trending score of 30 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [Red Hat](https://intel.threadlinqs.com/vendors/red-hat): Enterprise Linux 10, Enterprise Linux 6, Enterprise Linux 7, Enterprise Linux 8, Enterprise Linux 9

## How to fix CVE-2026-81893

No vendor patch reference has been recorded for CVE-2026-81893 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-81893

No threat campaign in the Threadlinqs corpus currently references CVE-2026-81893, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, GitHub Security Advisories, FIRST EPSS. Last verified by Threadlinqs on 2026-08-30.

**Third-party advisory**

- [access.redhat.com — vdb entry](https://access.redhat.com/security/cve/CVE-2026-81893)
- [bugzilla.redhat.com — issue tracking](https://bugzilla.redhat.com/show_bug.cgi?id=2524834)

**Other references**

- [gitlab.gnome.org](https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/commit/efe658674bd103d1c9bf50809d5767a3f6dd5a01)
- [gitlab.gnome.org (278)](https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/merge_requests/278)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-81893
Full detection coverage and IOCs for threats exploiting CVE-2026-81893 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp