tinyobjloader d56555b mtl File tinyobj_loader_opt.h tinyobj_loader_opt stack-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.4$0-$5k0.00

Summaryinfo

A vulnerability was found in tinyobjloader d56555b. It has been classified as critical. This vulnerability affects the function tinyobj_loader_opt in the library experimental/tinyobj_loader_opt.h of the component mtl File Handler. The manipulation leads to stack-based overflow. This vulnerability is listed as CVE-2026-29628. There is no available exploit. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability was found in tinyobjloader d56555b. It has been rated as problematic. This issue affects the function tinyobj_loader_opt in the library experimental/tinyobj_loader_opt.h of the component mtl File Handler. The manipulation with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). Impacted is availability. The summary by CVE is:

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.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-29628 since 03/04/2026. The exploitation is known to be easy. Technical details are known, but no exploit is available.

Applying the patch 386b73bb8c1a855236beb73b11f45f7feac4e03a is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-21926). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: 386b73bb8c1a855236beb73b11f45f7feac4e03a

Timelineinfo

03/04/2026 CVE reserved
04/13/2026 +39 days Advisory disclosed
04/13/2026 +0 days VulDB entry created
04/13/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: 386b73bb8c1a855236beb73b11f45f7feac4e03a
Status: Confirmed

CVE: CVE-2026-29628 (🔒)
GCVE (CVE): GCVE-0-2026-29628
GCVE (VulDB): GCVE-100-357173
EUVD: 🔒

Entryinfo

Created: 04/13/2026 17:30
Updated: 04/13/2026 17:58
Changes: 04/13/2026 17:30 (58), 04/13/2026 17:58 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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