CVE-2026-66759

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-07-27. a secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: Elevated riskExposed: 0

A fix is available — apply it.

A flaw was found in the file-icns plugin in GIMP. When applying a decompressed mask during ICNS image processing, the plugin reads from the mask data buffer without verifying if the cursor exceeds the allocated resource size. If a crafted file contains a truncated mask resource, the icns_decompress function continues reading past the bounds of the buffer. This out-of-bounds read vulnerability results in information disclosure of heap contents, where memory contents are leaked as alpha channel pixel values, or a crash leading to a denial of service if unmapped memory is accessed.

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
48(Track)
EG Risk 48/100SSVC: 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
Severity71% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
17%
KEV
Not listed

Published

July 27, 2026

Last Modified

August 24, 2026

Advisory Details (3)

Auto-updated Jul 27, 2026
Patch available. Sources: redhat.
generic

3 memory corruption vulnerabilities in GIMP's file format loaders (#16528) · Issues · GNOME / GIMP · GitLab

https://gitlab.gnome.org/GNOME/gimp/-/issues/16528
redhat

2507557 – (CVE-2026-66759) CVE-2026-66759 gimp: out-of-bounds read in file-icns plugin causes information disclosure or crash on crafted ICNS images

https://bugzilla.redhat.com/show_bug.cgi?id=2507557
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-66759

Vendor Advisories for CVE-2026-66759(2)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatgimp-2:3.0.4-4.el9_8.92026-08-05redhat

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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
gimp2.10.22-4 ... 3.2.4-3 (61 versions)——
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.

Data Freshness Timeline

(refreshed 30× in last 7d / 134× 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 271 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-66759?
CVE-2026-66759 is a high vulnerability published on July 27, 2026. A flaw was found in the file-icns plugin in GIMP. When applying a decompressed mask during ICNS image processing, the plugin reads from the mask data buffer without verifying if the cursor exceeds the allocated resource size. If a crafted file contains a truncated mask resource, the icns_decompress…
When was CVE-2026-66759 disclosed?
CVE-2026-66759 was first published in the National Vulnerability Database on July 27, 2026, with the most recent update on August 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-66759 actively exploited?
CVE-2026-66759 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 83.1% of all scored CVEs.
What is the CVSS score of CVE-2026-66759?
CVE-2026-66759 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-66759?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-66759, 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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