CVE-2026-18304

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-20. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

GIMP TIF 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 TIF 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-29403.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
30%
KEV
Not listed

Published

August 20, 2026

Last Modified

September 2, 2026

Advisory Details (2)

Auto-updated Aug 20, 2026
No patch confirmed yet.
generic

Client Challenge

https://gitlab.gnome.org/GNOME/gimp/-/commit/ad32d22c347674fa1bb5b60935c376b673d946e7
generic

ZDI-26-457 - TrendAI™ Zero Day Initiative™ (ZDI)

https://www.zerodayinitiative.com/advisories/ZDI-26-457/

Vendor Advisories for CVE-2026-18304(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatgimp:2.8-8100020260824165450.4c9c024f2026-09-02redhat
redhatgimp-2:3.0.4-4.el9_8.102026-08-31redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
gimp2.10.34-1 ... 3.2.4-3 (56 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
gimp3.0.4-3 ... 3.0.4-3+deb13u9 (10 versions)3.0.4-3+deb13u10—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
gimp3.0.4-3 ... 3.2.4-3 (19 versions)——

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(2)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 35× in last 7d / 146× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 154 total refreshes for this CVE.

  1. 2026-09-21 03:18 UTCEG score recompute
  2. 2026-09-21 03:18 UTCVendor advisory
  3. 2026-09-21 03:18 UTCGHSA enrichment
  4. 2026-09-20 14:17 UTCVendor advisory
  5. 2026-09-20 14:17 UTCGHSA enrichment
  6. 2026-09-20 01:18 UTCEG score recompute
  7. 2026-09-20 01:18 UTCVendor advisory
  8. 2026-09-20 01:18 UTCGHSA enrichment
  9. 2026-09-19 12:20 UTCVendor advisory
  10. 2026-09-19 12:19 UTCGHSA enrichment
  11. 2026-09-18 23:20 UTCEG score recompute
  12. 2026-09-18 23:20 UTCVendor advisory
  13. 2026-09-18 23:20 UTCGHSA enrichment
  14. 2026-09-18 19:27 UTCEPSS rescore
  15. 2026-09-18 10:22 UTCVendor advisory
  16. 2026-09-18 10:22 UTCGHSA enrichment
  17. 2026-09-17 21:23 UTCEG score recompute
  18. 2026-09-17 21:23 UTCVendor advisory
  19. 2026-09-17 21:23 UTCGHSA enrichment
  20. 2026-09-17 05:03 UTCVendor advisory
  21. 2026-09-17 05:03 UTCGHSA enrichment
  22. 2026-09-16 16:04 UTCEG score recompute
  23. 2026-09-16 16:04 UTCVendor advisory
  24. 2026-09-16 16:04 UTCGHSA enrichment
  25. 2026-09-16 14:07 UTCEPSS rescore
Show 75 more
  1. 2026-09-16 05:14 UTCEPSS rescore
  2. 2026-09-16 03:04 UTCVendor advisory
  3. 2026-09-16 03:04 UTCGHSA enrichment
  4. 2026-09-15 14:05 UTCEG score recompute
  5. 2026-09-15 14:05 UTCVendor advisory
  6. 2026-09-15 14:05 UTCGHSA enrichment
  7. 2026-09-15 01:06 UTCVendor advisory
  8. 2026-09-15 01:06 UTCGHSA enrichment
  9. 2026-09-14 12:08 UTCVendor advisory
  10. 2026-09-14 12:07 UTCGHSA enrichment
  11. 2026-09-13 23:08 UTCEG score recompute
  12. 2026-09-13 23:08 UTCVendor advisory
  13. 2026-09-13 23:08 UTCGHSA enrichment
  14. 2026-09-13 16:46 UTCEPSS rescore
  15. 2026-09-13 10:09 UTCVendor advisory
  16. 2026-09-13 10:09 UTCGHSA enrichment
  17. 2026-09-12 21:10 UTCEG score recompute
  18. 2026-09-12 21:10 UTCVendor advisory
  19. 2026-09-12 21:10 UTCGHSA enrichment
  20. 2026-09-12 15:00 UTCEPSS rescore
  21. 2026-09-12 08:11 UTCVendor advisory
  22. 2026-09-12 08:11 UTCGHSA enrichment
  23. 2026-09-11 19:12 UTCEG score recompute
  24. 2026-09-11 19:12 UTCVendor advisory
  25. 2026-09-11 19:12 UTCGHSA enrichment
  26. 2026-09-11 14:52 UTCEPSS rescore
  27. 2026-09-11 09:36 UTCEPSS rescore
  28. 2026-09-11 05:55 UTCVendor advisory
  29. 2026-09-11 05:55 UTCGHSA enrichment
  30. 2026-09-10 16:56 UTCEG score recompute
  31. 2026-09-10 16:56 UTCVendor advisory
  32. 2026-09-10 16:56 UTCGHSA enrichment
  33. 2026-09-10 09:34 UTCEPSS rescore
  34. 2026-09-10 03:57 UTCVendor advisory
  35. 2026-09-10 03:56 UTCGHSA enrichment
  36. 2026-09-09 14:57 UTCVendor advisory
  37. 2026-09-09 14:57 UTCGHSA enrichment
  38. 2026-09-09 01:58 UTCEG score recompute
  39. 2026-09-09 01:58 UTCVendor advisory
  40. 2026-09-09 01:58 UTCGHSA enrichment
  41. 2026-09-08 22:00 UTCEPSS rescore
  42. 2026-09-08 04:32 UTCEG score recompute
  43. 2026-09-08 04:32 UTCVendor advisory
  44. 2026-09-08 04:32 UTCGHSA enrichment
  45. 2026-09-07 16:01 UTCEPSS rescore
  46. 2026-09-07 15:33 UTCVendor advisory
  47. 2026-09-07 15:33 UTCGHSA enrichment
  48. 2026-09-06 23:25 UTCEG score recompute
  49. 2026-09-06 23:25 UTCVendor advisory
  50. 2026-09-06 23:25 UTCGHSA enrichment
  51. 2026-09-06 13:47 UTCEPSS rescore
  52. 2026-09-06 10:26 UTCVendor advisory
  53. 2026-09-06 10:26 UTCGHSA enrichment
  54. 2026-09-05 21:27 UTCEG score recompute
  55. 2026-09-05 21:27 UTCVendor advisory
  56. 2026-09-05 21:27 UTCGHSA enrichment
  57. 2026-09-05 08:29 UTCVendor advisory
  58. 2026-09-05 08:29 UTCGHSA enrichment
  59. 2026-09-04 19:30 UTCEG score recompute
  60. 2026-09-04 19:30 UTCVendor advisory
  61. 2026-09-04 19:30 UTCGHSA enrichment
  62. 2026-09-04 06:21 UTCEG score recompute
  63. 2026-09-04 06:21 UTCVendor advisory
  64. 2026-09-04 06:21 UTCGHSA enrichment
  65. 2026-09-04 05:06 UTCEPSS rescore
  66. 2026-09-03 17:22 UTCVendor advisory
  67. 2026-09-03 17:22 UTCGHSA enrichment
  68. 2026-09-03 04:23 UTCVendor advisory
  69. 2026-09-03 04:23 UTCGHSA enrichment
  70. 2026-09-02 15:07 UTCEG score recompute
  71. 2026-09-02 15:07 UTCVendor advisory
  72. 2026-09-02 15:07 UTCGHSA enrichment
  73. 2026-09-02 14:11 UTCEPSS rescore
  74. 2026-09-02 11:28 UTCVendor advisory
  75. 2026-09-02 11:28 UTCGHSA enrichment

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-18304?
CVE-2026-18304 is a high vulnerability published on August 20, 2026. GIMP TIF 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…
When was CVE-2026-18304 disclosed?
CVE-2026-18304 was first published in the National Vulnerability Database on August 20, 2026, with the most recent update on September 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18304 actively exploited?
CVE-2026-18304 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 70.3% of all scored CVEs.
What is the CVSS score of CVE-2026-18304?
CVE-2026-18304 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-18304?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-18304, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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