What’s Vulnerable › Vulnerabilities

CVE-2026-82343: Gimp: heap out-of-bounds read and stack out-of-bounds access in psd loader from channel-count handling

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-28 · updated 2026-09-01
• Weakness: CWE-120

Description

A flaw was found in the file-psd plugin in GIMP. When processing a specially crafted PSD image file, the plugin does not properly validate the channel-count parameter. This incorrect validation leads to improper memory bounds checking, resulting in both a heap out-of-bounds read and a stack out-of-bounds access. This issue can result in an application crash, leading to a denial of service or a limited information disclosure of memory contents.

Affected products

• GIMP: through 3.3.1
• Red Hat Enterprise Linux: 6.0, 7.0, 8.0, 9.0

References

• https://access.redhat.com/security/cve/CVE-2026-82343
• https://bugzilla.redhat.com/show_bug.cgi?id=2525644
• https://gitlab.gnome.org/GNOME/gimp/-/work_items/16587

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