CVE-2026-18306

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-20. 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.

GIMP SGI File Parsing Integer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GIMP. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of SGI files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29396.

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
27%
KEV
Not listed

Published

August 20, 2026

Last Modified

September 2, 2026

Advisory Details (2)

Auto-updated Aug 20, 2026
No patch confirmed yet.
generic

Client Challenge

https://gitlab.gnome.org/GNOME/gimp/-/commit/76531da9732f38566e5fd8f8f80c837158511ae5
generic

ZDI-26-459 - TrendAI™ Zero Day Initiative™ (ZDI)

https://www.zerodayinitiative.com/advisories/ZDI-26-459/

Vendor Advisories for CVE-2026-18306(1)

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_8.102026-08-31redhat

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

(3 across 3 ecosystems)
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.

All Vendor Advisories

(2)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 33× in last 7d / 142× 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 150 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-18306?
CVE-2026-18306 is a high vulnerability published on August 20, 2026. GIMP SGI File Parsing Integer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GIMP. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a…
When was CVE-2026-18306 disclosed?
CVE-2026-18306 was first published in the National Vulnerability Database on August 20, 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-2026-18306 actively exploited?
CVE-2026-18306 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 72.6% of all scored CVEs.
What is the CVSS score of CVE-2026-18306?
CVE-2026-18306 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-18306?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-18306, 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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