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CVE-2026-18307

Status: AnalyzedHigh (7.8)—

GIMP TIF File Parsing Heap-based Buffer 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 TIF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29404.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

AV:L + UI:R indica ejecución en cliente (abrir archivo TIF malicioso). El overflow en heap permite ejecución de código arbitrario en el contexto del proceso GIMP.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Affected technologies (1)

CWEs

References

Raw JSON (NVD)

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{
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  "cveTags": [],
  "metrics": {
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          "confidentialityImpact": "HIGH"
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      "affectedData": [
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  "published": "2026-08-20T17:17:27.757",
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      "url": "https://gitlab.gnome.org/GNOME/gimp/-/commit/bace3e7fd54104fe6b70c1703e9b982a4770811d",
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  "lastModified": "2026-09-02T15:07:02.740",
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