cgltf through 1.15 contains an integer overflow vulnerability in the non-sparse accessor bounds check within cgltf_validate() that allows remote attackers to cause memory disclosure and denial of service by supplying crafted accessor count values. Attackers can provide malformed .gltf or .glb input with a specially crafted accessor count to overflow the unsigned integer multiplication of accessor stride and element count, causing the bounds check to pass and triggering a heap out-of-bounds read when cgltf_accessor_read_float() is subsequently called on the validated malformed accessor.
CVE-2026-75148
MEDIUMPre-NVD 6.16.1—Trending — 4 sources updated this weekElevated
EchelonGraph scoreHIGH confidence
Score 6.1 from GitHub Security Advisory published 2026-08-19. a secondary CVSS source baseline 6.1; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: ghsa, secondary
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: Elevated riskExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.1
- EG Score
- 6.1(high)
- EG Risk
- 43(Track)EG Risk 43/100SSVC: 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 computedSeverity61% × 45%Exploitation40% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 5%
- KEV
- Not listed
Published
August 19, 2026
Last Modified
August 20, 2026
Advisory Details (2)
Auto-updated Aug 19, 2026No patch confirmed yet.
generic
cgltf 1.15 Integer Overflow via cgltf_validate() Accessor Bounds Check | Advisories | VulnCheck
https://www.vulncheck.com/advisories/cgltf-integer-overflow-via-cgltf-validate-accessor-bounds-checkgeneric
Security: Integer overflow in cgltf_validate() non-sparse accessor causes heap OOB read (CWE-125/CWE-190) · Issue #301 · jkuhlmann/cgltf · GitHub
https://github.com/jkuhlmann/cgltf/issues/301Vendor Advisories for CVE-2026-75148(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 10× 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.
- 2026-08-20 22:56 UTCEPSS rescore
- 2026-08-20 18:17 UTCEG score recompute
- 2026-08-20 18:17 UTCGHSA enrichment
- 2026-08-20 17:32 UTCEG score recompute
- 2026-08-20 17:32 UTCGHSA enrichment
- 2026-08-20 14:25 UTCEG score recompute
- 2026-08-20 14:25 UTCGHSA enrichment
- 2026-08-19 14:26 UTCEG score recompute
- 2026-08-19 13:57 UTCEG score recompute
- 2026-08-19 13:57 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-190
Frequently asked(5)
What is CVE-2026-75148?
CVE-2026-75148 is a medium vulnerability published on August 19, 2026. cgltf through 1.15 contains an integer overflow vulnerability in the non-sparse accessor bounds check within cgltfvalidate() that allows remote attackers to cause memory disclosure and denial of service by supplying crafted accessor count values. Attackers can provide malformed .gltf or .glb input…
When was CVE-2026-75148 disclosed?
CVE-2026-75148 was first published in the National Vulnerability Database on August 19, 2026, with the most recent update on August 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-75148 actively exploited?
CVE-2026-75148 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 95.1% of all scored CVEs.
What is the CVSS score of CVE-2026-75148?
CVE-2026-75148 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-75148?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-75148, 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
Explore the affected products and dependency analysis for CVE-2026-75148
Is Your Infrastructure Affected by CVE-2026-75148?
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