CVE-2026-66757

MEDIUMPre-NVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-07-27. a secondary CVSS source baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A flaw was found in the file-sgi plugin in GIMP. When processing an RLE-compressed SGI image, the plugin allocates memory for a row table. The image header dimensions (ysize and zsize) are read as 16-bit unsigned integers. If a crafted file sets both dimensions to their maximum value (65535), the multiplication ysize * zsize overflows the standard 32-bit int boundary before being passed to calloc. This integer overflow issue results in undefined behavior, aborting the plugin and causing a denial of service.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity55% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
14%
KEV
Not listed

Published

July 27, 2026

Last Modified

August 10, 2026

Advisory Details (3)

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

Signed integer overflow in `file-sgi` (sgi-lib) — `ysize × zsize` in `calloc` aborts the plug-in on RLE SGI (#16494) · Issues · GNOME / GIMP · GitLab

https://gitlab.gnome.org/GNOME/gimp/-/work_items/16494
redhat

2507465 – (CVE-2026-66757) CVE-2026-66757 gimp: signed integer overflow in file-sgi (sgi-lib) causes the plugin to crash on RLE SGI images

https://bugzilla.redhat.com/show_bug.cgi?id=2507465
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-66757

Vendor Advisories for CVE-2026-66757(1)

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

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 (29 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 14× in last 7d / 65× 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 127 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-66757?
CVE-2026-66757 is a medium vulnerability published on July 27, 2026. A flaw was found in the file-sgi plugin in GIMP. When processing an RLE-compressed SGI image, the plugin allocates memory for a row table. The image header dimensions (ysize and zsize) are read as 16-bit unsigned integers. If a crafted file sets both dimensions to their maximum value (65535), the…
When was CVE-2026-66757 disclosed?
CVE-2026-66757 was first published in the National Vulnerability Database on July 27, 2026, with the most recent update on August 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-66757 actively exploited?
CVE-2026-66757 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 85.9% of all scored CVEs.
What is the CVSS score of CVE-2026-66757?
CVE-2026-66757 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-66757?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-66757, 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-2026-66757

Explore →

Is Your Infrastructure Affected by CVE-2026-66757?

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

Start Free Scan →Browse All CVEs