CVE-2026-66759

HIGHPre-NVD 7.17.1—
EchelonGraph scoreHIGH 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(high)
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
12%
KEV
Not listed

Published

July 27, 2026

Last Modified

August 7, 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 ... 3.2.4-3 (28 versions)——
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 41× in last 7d / 143× 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 143 total refreshes for this CVE.

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

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 7, 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 87.9% 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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