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GIMP file-psd CVE-2026-82343

| EUVDEUVD-2026-67826 MEDIUM
Classic Buffer Overflow (CWE-120)
2026-08-28 redhat GHSA-cj7r-2p4g-x2hx
6.1
CVSS 3.1 · NVD
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Severity by source

Vendor (redhat) PRIMARY
MEDIUM
qualitative
NVD
6.1 MEDIUM
AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
vuln.today AI
6.1 MEDIUM

File-open trigger requires local delivery and active user action (UI:R, AV:L); no privileges needed; crash dominates impact with only marginal heap memory leakage (C:L, A:H, I:N).

3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
4.0 AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (redhat).

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High

Lifecycle Timeline

2
Analysis Generated
Aug 28, 2026 - 20:59 vuln.today
CVE Published
Aug 28, 2026 - 16:26 nvd
MEDIUM 6.1

DescriptionNVD

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.

AnalysisAI

Heap out-of-bounds read and stack out-of-bounds access in GIMP's file-psd plugin allow an attacker to crash the application or disclose limited memory contents by convincing a user to open a specially crafted PSD image. The flaw affects GIMP as shipped in Red Hat Enterprise Linux 6 through 9 and stems from missing validation of the channel-count parameter during PSD parsing. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Persist
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires that a user open a specially crafted PSD file in GIMP - this is the sole trigger condition. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 base score of 6.1 with vector AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H accurately reflects a moderate-risk, locally-triggered issue. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation No vendor-released patched version has been independently confirmed at time of analysis; patch status should be tracked via Red Hat Bugzilla bug 2525644 (https://bugzilla.redhat.com/show_bug.cgi?id=2525644) and the Red Hat CVE page (https://access.redhat.com/security/cve/CVE-2026-82343). … Detailed patch versions, workarounds, and compensating controls in full report.

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CVE-2026-82343 vulnerability details – vuln.today

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