CVE-2026-29628

CVE-2026-29628 is a medium-severity vulnerability with a CVSS 3.x base score of 6.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-121.

Key facts

Description

A stack overflow in the experimental/tinyobj_loader_opt.h file of tinyobjloader commit d56555b allows attackers to cause a Denial of Service (DoS) via supplying a crafted .mtl file.

Frequently asked questions

What is CVE-2026-29628?
A stack overflow in the experimental/tinyobj_loader_opt.h file of tinyobjloader commit d56555b allows attackers to cause a Denial of Service (DoS) via supplying a crafted .mtl file.
How severe is CVE-2026-29628?
CVE-2026-29628 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-29628 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-29628?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-29628 have an EU (EUVD) identifier?
Yes. CVE-2026-29628 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-21926.
When was CVE-2026-29628 published?
CVE-2026-29628 was published on 2026-04-13 and last updated on 2026-06-17.

References

Other CWE-121 (Stack-based Buffer Overflow) vulnerabilities

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