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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 PSD file or web page can cause GIMP to run attacker-controlled code when a user opens it. This is user-assisted, but impact is serious because code runs with the user’s privileges. Prioritize systems where GIMP handles files from customers, creatives, or the internet.

Executive priority

Treat this as a near-term patching item for exposed creative and image-processing workflows. It is not listed as actively exploited in the provided sources, but successful exploitation could compromise user data and workstation integrity.

Technical view

CVE-2026-4150 is an integer overflow in GIMP PSD parsing, caused by insufficient validation before buffer allocation. ZDI reports arbitrary code execution in the current process. The supplied affected entry names GIMP 3.0.8, with default status unknown for other versions.

Likely exposure

Exposure is most likely on desktops, creative workstations, and automated image-processing environments using GIMP to open PSD files, especially GIMP 3.0.8. Risk rises where users receive PSD files externally or browse pages that may deliver malicious files.

Exploitation context

The sources require user interaction: the target must open a malicious file or visit a malicious page. The bundle marks KEV as false, and no provided source states active exploitation.

Researcher notes

Focus review on PSD parsing paths and integer arithmetic before allocation. The issue is mapped to CWE-190 and ZDI-CAN-28807. The source bundle includes a vendor commit, but does not fully enumerate all fixed upstream versions.

Mitigation direction

  • Apply vendor or distribution updates referenced by GIMP and Red Hat guidance.
  • Restrict opening PSD files from untrusted sources until patched.
  • Reduce GIMP use on high-value systems where PSD handling is unnecessary.
  • Use endpoint controls to limit execution from user-writable locations.
  • Monitor vendor advisories for fixed upstream version details.

Validation and detection

  • Inventory GIMP installations and identify version 3.0.8 exposure.
  • Check Linux package status against relevant Red Hat advisories.
  • Confirm whether workflows ingest PSD files from external parties.
  • Review file-association and browser download handling for PSD files.
  • Track endpoint alerts for GIMP crashes or abnormal child processes.
Prepared
Confidence
high
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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