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CVE-2026-29628

A stack overflow in the experimental/tinyobj_loader_opt.h file of tinyobjloader commit d56555b...

6.2 MediumPublic exploit

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.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.18%Up 0.2 points since Apr 14, 2026
90%50%10%1%

What each source reports

CVE List Score used 6.2

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.

Record
CVE-2026-29628
CVSS 3.1
6.2 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-121
Updated
2026-11-02
EUVDEUVD-2026-21926 6.2

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.

Record
EUVD-2026-21926
CVSS 3.1
6.2 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-mwfv-wphg-q8j6 6.2

A stack overflow in the experimental/tinyobj_loader_opt.h file of tinyobjloader commit d56555b...

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.

Record
GHSA-mwfv-wphg-q8j6
CVSS 3.1
6.2 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-121
Updated
2026-11-02
NVD 6.2

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.

Record
CVE-2026-29628
CVSS 3.1
6.2 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-121
Updated
2026-11-02
OSV 6.2

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.

Record
CVE-2026-29628
CVSS 3.1
6.2 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2026-29628 6.2

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.

Record
UBUNTU-CVE-2026-29628
CVSS 3.1
6.2 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02

Affected packages

Affected packages
PackageAffectedFixed
tinyobjloader
Ubuntu:22.04:LTS
 All versions, plus listed versions
2.0.0~rc5+dfsg1-4build12.0.0~rc5+dfsg1-4build22.0.0~rc5+dfsg1-52.0.0~rc5+dfsg1-5build1
 None known
tinyobjloader
Ubuntu:24.04:LTS
 All versions, plus listed versions
2.0.0~rc10+dfsg-32.0.0~rc10+dfsg-3build12.0.0~rc10+dfsg-3build2
 None known
tinyobjloader
Ubuntu:25.10
 All versions, plus listed versions
2.0.0~rc13+dfsg-2build12.0.0~rc13+dfsg-3
 None known
tinyobjloader
Ubuntu:26.10
 All versions, plus listed versions
2.0.0~rc13+dfsg-3build2
 None known
tinyobjloader
Ubuntu:26.04:LTS
 All versions, plus listed versions
2.0.0~rc13+dfsg-32.0.0~rc13+dfsg-3build12.0.0~rc13+dfsg-3build2
 None known

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
PoC in GitHubkiyochii/CVE-2026-296282026-04-07

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-29628 is a medium vulnerability (CVSS 6.2) in tinyobjloader, published April 13, 2026. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.18%, the 7th percentile. No source names a fixed version.

References

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