CVE-2026-35444

MEDIUMNVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.1 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 82% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.1Exploit: None knownExposed: 0

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

SDL_image is a library to load images of various formats as SDL surfaces. In do_layer_surface() in src/IMG_xcf.c, pixel index values from decoded XCF tile data are used directly as colormap indices without validating them against the colormap size (cm_num). A crafted .xcf file with a small colormap and out-of-range pixel indices causes heap out-of-bounds reads of up to 762 bytes past the colormap allocation. Both IMAGE_INDEXED code paths are affected (bpp=1 and bpp=2). The leaked heap bytes are written into the output surface pixel data, making them potentially observable in the rendered image. This vulnerability is fixed with commit 996bf12888925932daace576e09c3053410896f8.

CVSS v3
6.1
EG Score
6.1(medium)
EG Risk
28(Track)
EG Risk 28/100SSVC: 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
Severity61% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
18%
KEV
Not listed

Published

April 6, 2026

Last Modified

July 24, 2026

Advisory Details (1)

Auto-updated Jul 25, 2026
Patch available. Sources: github.
github Patch Available

Heap buffer overflow READ via unchecked colormap index in XCF loader · Advisory · libsdl-org/SDL_image · GitHub

Affected: 996bf12888925932daace576e09c3053410896f8

https://github.com/libsdl-org/SDL_image/security/advisories/GHSA-gq8w-x74c-h6p7

Affected Packages

(10 across 4 ecosystems)
Debian:13(3)
PackageVulnerable rangeFixed inDependents
libsdl2-image2.8.10+dfsg-1, 2.8.12+dfsg-1, 2.8.12+dfsg-2, 2.8.8+dfsg-1, 2.8.8+dfsg-2——
libsdl3-image3.2.4+ds-1 ... 3.4.4+ds-2 (8 versions)——
sdl-image1.21.2.12-14——
Debian:14(3)
PackageVulnerable rangeFixed inDependents
libsdl2-image2.8.8+dfsg-1, 2.8.8+dfsg-22.8.10+dfsg-1—
libsdl3-image3.2.4+ds-1, 3.2.6+ds-1, 3.3.4+ds-1, 3.3.4+ds-2, 3.4.0+ds-13.4.2+ds-1—
sdl-image1.21.2.12-14——
Debian:11(2)
PackageVulnerable rangeFixed inDependents
libsdl2-image2.0.5+dfsg1-2 ... 2.8.8+dfsg-2 (33 versions)——
sdl-image1.21.2.12-12, 1.2.12-13, 1.2.12-14——
Debian:12(2)
PackageVulnerable rangeFixed inDependents
libsdl2-image2.6.3+dfsg-1 ... 2.8.8+dfsg-2 (14 versions)——
sdl-image1.21.2.12-13, 1.2.12-14——

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 27× 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 157 total refreshes for this CVE.

  1. 2026-09-15 03:11 UTCEPSS rescore
  2. 2026-09-13 16:47 UTCEPSS rescore
  3. 2026-09-12 15:01 UTCEPSS rescore
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  24. 2026-08-18 13:48 UTCEPSS rescore
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  1. 2026-08-16 14:56 UTCEPSS rescore
  2. 2026-08-16 08:21 UTCEG score recompute
  3. 2026-08-16 02:14 UTCEPSS rescore
  4. 2026-08-15 01:30 UTCEPSS rescore
  5. 2026-08-14 05:29 UTCEG score recompute
  6. 2026-08-13 22:00 UTCEPSS rescore
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  8. 2026-08-12 13:50 UTCEPSS rescore
  9. 2026-08-11 19:55 UTCEG score recompute
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  11. 2026-08-10 07:19 UTCEG score recompute
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  18. 2026-08-05 19:17 UTCEPSS rescore
  19. 2026-08-04 15:10 UTCEPSS rescore
  20. 2026-08-04 10:38 UTCEPSS rescore
  21. 2026-08-03 22:26 UTCEG score recompute
  22. 2026-08-03 10:36 UTCEPSS rescore
  23. 2026-08-02 14:21 UTCEG score recompute
  24. 2026-08-01 04:16 UTCEPSS rescore
  25. 2026-07-30 16:28 UTCEPSS rescore
  26. 2026-07-30 01:30 UTCEPSS rescore
  27. 2026-07-27 14:13 UTCEPSS rescore
  28. 2026-07-26 14:54 UTCEPSS rescore
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  30. 2026-07-26 09:01 UTCEG score recompute▼ 1.00
  31. 2026-07-25 14:18 UTCEPSS rescore
  32. 2026-07-25 14:18 UTCEPSS rescore
  33. 2026-07-24 22:12 UTCNVD updateCVSS v3 → 6.1 · severity → MEDIUM
  34. 2026-07-24 14:17 UTCEPSS rescore
  35. 2026-07-24 14:17 UTCEPSS rescore
  36. 2026-07-23 14:18 UTCEPSS rescore
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  38. 2026-07-23 03:10 UTCEG score recompute
  39. 2026-07-22 14:08 UTCEPSS rescore
  40. 2026-07-20 17:08 UTCEPSS rescore
  41. 2026-07-19 14:31 UTCEPSS rescore
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  44. 2026-07-16 17:03 UTCEPSS rescore
  45. 2026-07-15 16:57 UTCEPSS rescore
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  53. 2026-07-09 19:10 UTCEPSS rescore
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  68. 2026-06-28 04:56 UTCEPSS rescore
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  71. 2026-06-25 13:49 UTCEPSS rescore
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  74. 2026-06-23 21:33 UTCEPSS rescore
  75. 2026-06-23 21:33 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-35444?
CVE-2026-35444 is a medium vulnerability published on April 6, 2026. SDLimage is a library to load images of various formats as SDL surfaces. In dolayersurface() in src/IMGxcf.c, pixel index values from decoded XCF tile data are used directly as colormap indices without validating them against the colormap size (cmnum). A crafted .xcf file with a small colormap and…
When was CVE-2026-35444 disclosed?
CVE-2026-35444 was first published in the National Vulnerability Database on April 6, 2026, with the most recent update on July 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-35444 actively exploited?
CVE-2026-35444 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 82.0% of all scored CVEs.
What is the CVSS score of CVE-2026-35444?
CVE-2026-35444 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-35444?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-35444, 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.

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