CVE-2026-18305

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 — Patch released 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: 0.4%CVSS: 7.8Exploit: None knownExposed services: Not assessed

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-29406.

CVSS v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
35
EG Risk 35/100CISA SSVC

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%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
27th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 20, 2026

Last Modified

September 2, 2026

Advisory Details (2)

Auto-updated Aug 20, 2026
Patch available.
generic

Client Challenge

https://gitlab.gnome.org/GNOME/gimp/-/commit/0a45a2b51b877829ef523131b50c0eb2a933b8a1
generic

ZDI-26-458 - TrendAI™ Zero Day Initiative™ (ZDI)

https://www.zerodayinitiative.com/advisories/ZDI-26-458/

Vendor Advisories for CVE-2026-18305(2)

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

Patch Availability(3)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatgimp-2:2.99.8-4.el9_6.202026-09-30redhat
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 rangeFix by version rangeDependents
gimp2.10.34-1 ... 3.2.6-1 (57 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
gimp3.0.4-3 ... 3.0.4-3+deb13u9 (10 versions)
  • every version up to 3.0.4-3+deb13u10: fixed in 3.0.4-3+deb13u10
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
gimp3.0.4-3 ... 3.2.4-3 (19 versions)
  • every version up to 3.2.6-1: fixed in 3.2.6-1
—

Weakness Classification(1)

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

Additional Vendor Advisories

(2)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 34× in last 7d / 144× 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 217 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-18305?
CVE-2026-18305 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-2026-18305 disclosed?
CVE-2026-18305 was first published 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-2026-18305 actively exploited?
CVE-2026-18305 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (27th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-18305?
CVE-2026-18305 has a CVSS base score of 7.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-18305?
A fix for CVE-2026-18305 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-18305 are linked in the Vendor Advisories panel on this page.

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