🛡️ GHSA-58p5-r2f6-g2cj — usd-core
Description
Pixar OpenUSD Sdf_PathNode Module Use-After-Free Vulnerability Leading to Potential Remote Code Execution
Summary
A Use-After-Free (UAF) vulnerability has been discovered in the Sdf_PathNode module of the Pixar OpenUSD library. This issue occurs during the deletion of the Sdf_PrimPathNode object in multi-threaded environments, where freed memory is accessed. This results in segmentation faults or bus errors, allowing attackers to potentially exploit the vulnerability for remote code execution (RCE). By using a specially crafted .usd file, an attacker could gain control of the affected system. The vulnerability has been confirmed in multiple OpenUSD tools, including sdfdump, usdtree, usdcat, and sdffilter.
Patches
This is fixed with [commit 0d74f31](https://github.com/PixarAnimationStudios/OpenUSD/commit/0d74f31fe64310791e274e587c9926335e9db9db), with the fix available in OpenUSD 25.08 and onwards.
Details
The issue is a Use-After-Free vulnerability in the Sdf_PathNode destruction process, specifically in Sdf_PrimPathNode::~Sdf_PrimPathNode(). When multiple threads attempt to destroy or modify the same Sdf_PathNode object, a race condition can occur, causing the object to be accessed after it has been freed. This leads to segmentation faults or bus errors, as observed in the crash logs.
```
root@DESKTOP-7VTO277:/mnt/c/Users/HomePc/Fuzzing/linuxTarget/usd/asan_install/bin# ./sdffilter /mnt/c/Users/HomePc/Downloads/one.usd
Warning (secondary thread): in AppendProperty at line 921 of /mnt/c/Users/HomePc/Fuzzing/linuxTarget/usd/OpenUSD/pxr/usd/sdf/path.cpp -- Can only append a property 'extent' to a prim path (/HumanFemale_Group/HumanFemaleHair.xformOpOrder)
Warning (secondary thread): in AppendProperty at line 921 of /mnt/c/Users/HomePc/Fuzzing/linuxTarget/usd/OpenUSD/pxr/usd/sdf/path.cpp -- Can only append a property 'extent' to a prim path (/HumanFemale_Group/SocksHuman.xformOp:transform)
AddressSanitizer:DEADLYSIGNAL
Warning (secondary thread): in AppendProperty at line 921 of /mnt/c/Users/HomePc/Fuzzing/linuxTarget/usd/OpenUSD/pxr/usd/sdf/path.cpp -- Can only append a property 'extent' to a prim path (/HumanFemale_Group/HumanFemale{rigComplexity=faceBones}Geom/Face/Eyes/LEye/Pupil_sbdv/LEye/Iris_sbdv.faceVertexCounts)
=================================================================
Warning (secondary thread): in AppendProperty at line 921 of /mnt/c/Users/HomePc/Fuzzing/linuxTarget/usd/OpenUSD/pxr/usd/sdf/path.cpp -- Can only append a property 'faceVertexCounts' to a prim path (/HumanFemale_Group/HumanFemaleHair.xformOpOrder)
AddressSanitizerWarning (secondary thread): in AppendProperty at line 921 of /mnt/c/Users/HomePc/Fuzzing/linuxTarget/usd/OpenUSD/pxr/usd/sdf/path.cpp -- Can only append a property 'faceVertexCounts' to a prim path (/HumanFemale_Group/SocksHuman.xformOp:transform)
:DEADLYSIGNAL
Warning (secondary thread): in AppendChild at line 824 of /mnt/c/Users/HomePc/Fuzzing/linuxTarget/usd/OpenUSD/pxr/usd/sdf/path.cpp -- Cannot append child 'Standin' to path '/HumanFemale_Group/KidThinButtonDown/Geom/LSock/Hair/Body/HeelSeam_sbdv/BrowL_HairLayer.primvars:displayColor'.
Warning (secondary thread): in AppendProperty at line 921 of /mnt/c/Users/HomePc/Fuzzing/linuxTarget/usd/OpenUSD/pxr/usd/sdf/path.cpp -- Can only append a property 'faceVertexIndices' to a prim path (/HumanFemale_Group/SocksHuman.xformOp:transform)
Warning (secondary thread): in AppendChild at line 824 of /mnt/c/Users/HomePc/Fuzzing/linuxTarget/usd/OpenUSD/pxr/usd/sdf/path.cpp -- Cannot append child 'Tongue_sbdv' to path '/HumanFemale_Group/HumanFemale{rigComplexity=faceBones}Geom/Body/Body_sbdv.points'.
Warning (secondary thread): in AppendProperty at line 921 of /mnt/c/Users/HomePc/Fuzzing/linuxTarget/usd/OpenUSD/pxr/usd/sdf/path.cpp -- Can only append a property 'faceVertexIndices' to a prim path (/HumanFemale_Group/HumanFemaleHair.xformOpOrder)
Warning (secondary thread): in AppendChild at line 824 of /mnt/c/Users/HomePc/Fuzzing/linuxTarget/usd/OpenUSD/pxr/usd/sdf/path.cpp -- Cannot append child 'Geom' to path '/HumanFemale_Group/KidThinButtonDown/Geom/LSock/Hair/Body/HeelSeam_sbdv.faceVertexCounts'.
Warning (secondary thread): in AppendProperty at line 921 of /mnt/c/Users/HomePc/Fuzzing/linuxTarget/usd/OpenUSD/pxr/usd/sdf/path.cpp -- Can only append a property 'points' to a prim path (/HumanFemale_Group/HumanFemaleHair.xformOpOrder)
Warning (secondary thread): in AppendChild at line 824 of /mnt/c/Users/HomePc/Fuzzing/linuxTarget/usd/OpenUSD/pxr/usd/sdf/path.cpp -- Cannot append child 'Cornea_sbdv' to path '/HumanFemale_Group/HumanFemale{rigComplexity=faceBones}Geom/Body/Body_sbdv.primvars:skel:jointWeights'.
Warning (secondary thread): in AppendProperty at line 921 of /mnt/c/Users/HomePc/Fuzzing/linuxTarget/usd/OpenUSD/pxr/usd/sdf/path.cpp -- Can only append a property 'primvars:displayColor' to a prim path (/HumanFemale_Group/HumanFemaleHair.xformOpOrder)
Warning (secondary thread): in AppendChild at line 824 of
How this vulnerability can be exploited
This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity low, availability high.
Weakness class
GHSA-58p5-r2f6-g2cj is classified as CWE-416: Use After Free. Memory is used after being released, so its contents may already belong to something else.
Affected software
GHSA-58p5-r2f6-g2cj is recorded against 1 package.
- usd-core (fixed in 25.8)
Timeline and source
Published on 4 September 2025. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
Details
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| usd-core | — | 25.8 |
References
Similar Threats
- Unknown GHSA-grjp-54v3-c442
Exploit Protection
Are you running usd-core?
GHSA-58p5-r2f6-g2cj carries CVSS 9.5 Critical rating. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.
Check My Site For GHSA-58p5-r2f6-g2cj →No credit card required · Results in minutes
ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.
