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: 0.3%CVSS: 7.1Exploit: Elevated riskExposed services: Not assessed

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
7.1HIGHmedium confidence
EG Risk
48
EG Risk 48/100CISA 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
Severity71% × 45%
Exploitation40% × 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
0.3%
EPSS %ILE
21st
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 public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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

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 / EcosystemFix (by version range) / 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 rangeFix by version rangeDependents
gimp2.10.22-4 ... 3.2.4-3 (61 versions)
  • every version on: no fix on record
—
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.

Data Freshness Timeline

(refreshed 19× in last 7d / 104× 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 313 total refreshes for this CVE.

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

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

Same vendor

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redhat:RHSA-2026:50817

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 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 0.3% probability of exploitation in the next 30 days (21st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-66759?
CVE-2026-66759 has a CVSS base score of 7.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-66759?
A fix for CVE-2026-66759 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-66759 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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