CVE-2026-66758

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-27. 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.

A flaw was found in the file-fits plugin in GIMP. When processing a FITS image file, the plugin calculates memory allocation sizes using signed 32-bit integers for width and height. If a crafted file sets both values to large values, their product exceeds 2^31 and overflows, resulting in an undersized heap-based buffer allocation. This integer overflow issue results in a heap-based buffer overflow when cfitsio subsequently writes a full row of pixels in the buffer, causing memory corruption, potentially leading to arbitrary code execution or a denial of service.

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
22%
KEV
Not listed

Published

July 27, 2026

Last Modified

September 2, 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

2507475 – (CVE-2026-66758) CVE-2026-66758 gimp: integer overflow in file-fits plugin causes a heap-based buffer overflow on crafted FITS images

https://bugzilla.redhat.com/show_bug.cgi?id=2507475
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-66758

Vendor Advisories for CVE-2026-66758(2)

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_8.92026-08-05redhat

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.

Additional Vendor Advisories

(1)

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 30× in last 7d / 141× 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 258 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-66758?
CVE-2026-66758 is a high vulnerability published on July 27, 2026. A flaw was found in the file-fits plugin in GIMP. When processing a FITS image file, the plugin calculates memory allocation sizes using signed 32-bit integers for width and height. If a crafted file sets both values to large values, their product exceeds 2^31 and overflows, resulting in an…
When was CVE-2026-66758 disclosed?
CVE-2026-66758 was first published in the National Vulnerability Database on July 27, 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-2026-66758 actively exploited?
CVE-2026-66758 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 77.9% of all scored CVEs.
What is the CVSS score of CVE-2026-66758?
CVE-2026-66758 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-66758?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-66758, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-66758

Explore →

Is Your Infrastructure Affected by CVE-2026-66758?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs