CVE-2026-18302

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 — Patch released 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: 0.4%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

GIMP TIF File Parsing Heap-based Buffer 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 TIF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29398.

CVSS v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
35
EG Risk 35/100CISA 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
Severity78% × 45%
Exploitation0% × 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
0.4%
EPSS %ILE
30th
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 none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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

August 20, 2026

Last Modified

September 2, 2026

Advisory Details (2)

Auto-updated Aug 20, 2026
Patch available.
generic

Client Challenge

https://gitlab.gnome.org/GNOME/gimp/-/commit/77e1a11636fae53c922fe92273b8f4e33c7a9176
generic

ZDI-26-455 - TrendAI™ Zero Day Initiative™ (ZDI)

https://www.zerodayinitiative.com/advisories/ZDI-26-455/

Vendor Advisories for CVE-2026-18302(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 / EcosystemFix (by version range) / PatchReleasedSource
redhatgimp-2:2.99.8-4.el9_6.202026-09-30redhat
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 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.

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 36× in last 7d / 160× 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 236 total refreshes for this CVE.

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

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

Frequently asked(5)

What is CVE-2026-18302?
CVE-2026-18302 is a high vulnerability published on August 20, 2026. GIMP TIF File Parsing Heap-based Buffer 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…
When was CVE-2026-18302 disclosed?
CVE-2026-18302 was first published 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-2026-18302 actively exploited?
CVE-2026-18302 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (30th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-18302?
CVE-2026-18302 has a CVSS base score of 7.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-18302?
A fix for CVE-2026-18302 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-18302 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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