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🛡️ CVE-2026-59090 — enterprise-linux

🟠 CVSS 8.4 — High ⚠️ Exploit Public CWE-191 NVD
8.4
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A flaw was found in GIMP's PSD file format plugin. This vulnerability, an unsigned integer underflow in the block_rem variable, occurs when a user opens a specially crafted .psd image file. The underflow leads to parser confusion, enabling an attacker to inject arbitrary data as layer resource blocks. This can ultimately result in arbitrary code execution, allowing the attacker to run malicious code on the victim's system.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs low-level privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality low, integrity high, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:H

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: High — the attacker first has to win a race, learn a secret or otherwise prepare the target.
  • Privileges required: Low — an ordinary user account is enough.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Changed — a successful attack reaches components beyond the vulnerable one.
  • Confidentiality impact: Low — limited, and the attacker does not choose what is affected.
  • Integrity impact: High — total loss, or loss the attacker controls.
  • Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2026-59090 is classified as CWE-191: Integer Underflow. A subtraction drops below the minimum for the type and wraps, yielding an unexpectedly large value.

Affected software

CVE-2026-59090 is recorded against 2 packages.

  • enterprise-linux
  • gimp

Timeline and source

Published on 10 August 2026 and last revised on 19 August 2026. A public exploit is known to exist, which raises the urgency of patching considerably. Record sourced from NVD.

References

access.redhat.com
bugzilla.redhat.com
gitlab.gnome.org
gitlab.gnome.org

Other advisories for this package

enterprise-linux has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-191: Integer Underflow) in other software:

Details

Severity HIGH
CVSS Score 8.4
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:H
CWE CWE-191
Public Exploit ⚠️ Yes
Source NVD
Published 2026-08-10
Updated 2026-08-20
Modified 2026-08-19
Fix URL N/A

Affected Packages

Software From version Fixed in
enterprise-linux — —
gimp — —

Similar Threats

Exploit Protection

Are you running enterprise-linux?

CVE-2026-59090 carries CVSS 8.4 High rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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