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CVE Record

CVE-2026-4150: GIMP PSD File Parsing Integer Overflow Remote Code Execution Vulnerability

GIMP PSD File Parsing Integer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GIMP. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of PSD files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28807.

HighCVSS 7.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

A malicious Photoshop PSD file can trigger memory corruption in GIMP 3.0.8 and may run code as the user who opens it. Exploitation requires user interaction, so the main business risk is compromise through files delivered by email, web, chat, or shared storage.

Executive priority

Treat this as a high-priority workstation exposure for creative, marketing, and web teams. It is not shown as actively exploited in the supplied data, but code execution through routine file opening is a credible business risk.

Technical view

The flaw is an integer overflow (CWE-190) in PSD parsing before buffer allocation. With insufficient validation of user-supplied PSD data, GIMP can allocate an undersized buffer and reach code execution in the current process. The supplied CVSS is 7.8, with user interaction required and high confidentiality, integrity, and availability impact.

Likely exposure

Exposure is most likely on workstations or packaged Linux environments running affected GIMP, especially GIMP 3.0.8, where users open PSD files from untrusted or semi-trusted sources.

Exploitation context

The source bundle does not show CISA KEV listing or confirmed active exploitation. ZDI describes remote attacker code execution, but exploitation still requires the target to visit a malicious page or open a malicious file.

Researcher notes

Evidence identifies ZDI-CAN-28807, PSD parsing, CWE-190, and a GNOME/GIMP commit reference. The bundle does not provide exploit artifacts, a confirmed fixed upstream version, or KEV evidence, so validation should focus on installed versions and vendor advisory status.

Mitigation direction

  • Check GNOME/GIMP guidance and apply the vendor fix when available.
  • Apply relevant Red Hat advisories for packaged GIMP deployments.
  • Restrict opening PSD files from unknown senders or shared locations.
  • Route untrusted design files through sandboxed or disposable workstations.
  • Prioritize endpoint monitoring for unexpected child processes from GIMP.

Validation and detection

  • Inventory endpoints and images for installed GIMP versions.
  • Confirm whether GIMP 3.0.8 or distribution-packaged builds are present.
  • Review package manager advisory status against listed Red Hat errata.
  • Check file-handling workflows where PSD files are received externally.
  • Verify users handling PSD files have least-privilege desktop accounts.
Prepared
Confidence
medium
Sources
8

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-190: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2026-4150 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.8 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

2CVSS vectors
5Timeline events
2ADP providers
17Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: total

CVSS vector scores

2 official scores

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.8CVSS 3.0HighCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9zdi
7.8CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9redhat-SADP

Vulnerability scoring details

Base CVSS 3.1 score

7.8High
CVSS 3.1 vector shape for CVE-2026-4150Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. ADP timelineredhat-SADP

    Made public.

  3. CVE publishedCVE Program

    The CVE record was published.

  4. ADP timelineredhat-SADP

    Reported to Red Hat.

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
redhat-SADPGIMP: GIMP: Arbitrary code execution via specially crafted PSD file
other:Red Hat severity ratingcvssV3_1
  • 2026-04-11T01:01:16.015Z: Reported to Red Hat.
  • 2026-04-11T00:15:36.377Z: Made public.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
GIMPGIMP3.0.8unknown
Weakness

CWE details

CWE-190

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-190 · source CWE mapping

Integer Overflow or Wraparound

Integer Overflow or Wraparound represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

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