CVE-2026-82591
Open Asset Import Library Assimp MD5Loader.cpp MakeDataUnique heap-based overflow
A security vulnerability has been detected in Open Asset Import Library Assimp up to 6.0.2. The impacted element is the function MD5Importer::MakeDataUnique of the file code/AssetLib/MD5/MD5Loader.cpp. The manipulation of the argument iNewIndex leads to heap-based buffer overflow. The attack can only be performed from a local environment. The identifier of the patch is bf9dabb617c46e5133dac65cca6bff177917afcb. Applying a patch is the recommended action to fix this issue.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Open Asset Import Library Assimp MD5Loader.cpp MakeDataUnique heap-based overflow
A security vulnerability has been detected in Open Asset Import Library Assimp up to 6.0.2. The impacted element is the function MD5Importer::MakeDataUnique of the file code/AssetLib/MD5/MD5Loader.cpp. The manipulation of the argument iNewIndex leads to heap-based buffer overflow. The attack can only be performed from a local environment. The identifier of the patch is bf9dabb617c46e5133dac65cca6bff177917afcb. Applying a patch is the recommended action to fix this issue.
- Record
CVE-2026-82591- CVSS 4.0
- 4.8 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X - CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C - CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C - CVSS 2.0
- 4.3
AV:L/AC:L/Au:S/C:P/I:P/A:P/E:ND/RL:OF/RC:C - Weakness
- CWE-122, CWE-119
- Updated
- 2026-11-02
EUVDEUVD-2026-68294
A security vulnerability has been detected in Open Asset Import Library Assimp up to 6.0.2. The impacted element is the function MD5Importer::MakeDataUnique of the file code/AssetLib/MD5/MD5Loader.cpp. The manipulation of the argument iNewIndex leads to heap-based buffer overflow. The attack can only be performed from a local environment. The identifier of the patch is bf9dabb617c46e5133dac65cca6bff177917afcb. Applying a patch is the recommended action to fix this issue.
- Record
EUVD-2026-68294- CVSS 4.0
- 4.8 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-4pff-rvgp-gggv
A security vulnerability has been detected in Open Asset Import Library Assimp up to 6.0.2. The...
A security vulnerability has been detected in Open Asset Import Library Assimp up to 6.0.2. The impacted element is the function MD5Importer::MakeDataUnique of the file code/AssetLib/MD5/MD5Loader.cpp. The manipulation of the argument iNewIndex leads to heap-based buffer overflow. The attack can only be performed from a local environment. The identifier of the patch is bf9dabb617c46e5133dac65cca6bff177917afcb. Applying a patch is the recommended action to fix this issue.
- Record
GHSA-4pff-rvgp-gggv- CVSS 4.0
- 4.8 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L - Weakness
- CWE-119
- Updated
- 2026-11-02
NVD
A security vulnerability has been detected in Open Asset Import Library Assimp up to 6.0.2. The impacted element is the function MD5Importer::MakeDataUnique of the file code/AssetLib/MD5/MD5Loader.cpp. The manipulation of the argument iNewIndex leads to heap-based buffer overflow. The attack can only be performed from a local environment. The identifier of the patch is bf9dabb617c46e5133dac65cca6bff177917afcb. Applying a patch is the recommended action to fix this issue.
- Record
CVE-2026-82591- CVSS 4.0
- 4.8 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L - CVSS 2.0
- 4.3 Medium
AV:L/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-119, CWE-122
- Updated
- 2026-11-02
OSV
Open Asset Import Library Assimp MD5Loader.cpp MakeDataUnique heap-based overflow
A security vulnerability has been detected in Open Asset Import Library Assimp up to 6.0.2. The impacted element is the function MD5Importer::MakeDataUnique of the file code/AssetLib/MD5/MD5Loader.cpp. The manipulation of the argument iNewIndex leads to heap-based buffer overflow. The attack can only be performed from a local environment. The identifier of the patch is bf9dabb617c46e5133dac65cca6bff177917afcb. Applying a patch is the recommended action to fix this issue.
- Record
CVE-2026-82591- CVSS 4.0
- 4.8 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X - Weakness
- CWE-119, CWE-122
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-82591
A security vulnerability has been detected in Open Asset Import Library Assimp up to 6.0.2. The impacted element is the function MD5Importer::MakeDataUnique of the file code/AssetLib/MD5/MD5Loader.cpp. The manipulation of the argument iNewIndex leads to heap-based buffer overflow. The attack can only be performed from a local environment. The identifier of the patch is bf9dabb617c46e5133dac65cca6bff177917afcb. Applying a patch is the recommended action to fix this issue.
- Record
DEBIAN-CVE-2026-82591- CVSS 4.0
- 4.8 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Updated
- 2026-11-02
Show 5 moreShow less
OSVOESA-2026-4021
assimp security update
Assimp is a library to load and process geometric scenes from various data formats. Assimp aims to provide a full asset conversion pipeline for use in game engines and real-time rendering systems of any kind, but is not limited to this purpose.
Security Fix(es):
A security vulnerability has been detected in Open Asset Import Library Assimp up to 6.0.2. The impacted element is the function MD5Importer::MakeDataUnique of the file code/AssetLib/MD5/MD5Loader.cpp. The manipulation of the argument iNewIndex leads to heap-based buffer overflow. The attack can only be performed from a local environment. The identifier of the patch is bf9dabb617c46e5133dac65cca6bff177917afcb. Applying a patch is the recommended action to fix this issue.(CVE-2026-82591)
- Record
OESA-2026-4021- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L - Updated
- 2026-11-02
OSVOESA-2026-4022
assimp security update
Assimp is a library to load and process geometric scenes from various data formats. Assimp aims to provide a full asset conversion pipeline for use in game engines and real-time rendering systems of any kind, but is not limited to this purpose.
Security Fix(es):
A security vulnerability has been detected in Open Asset Import Library Assimp up to 6.0.2. The impacted element is the function MD5Importer::MakeDataUnique of the file code/AssetLib/MD5/MD5Loader.cpp. The manipulation of the argument iNewIndex leads to heap-based buffer overflow. The attack can only be performed from a local environment. The identifier of the patch is bf9dabb617c46e5133dac65cca6bff177917afcb. Applying a patch is the recommended action to fix this issue.(CVE-2026-82591)
- Record
OESA-2026-4022- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L - Updated
- 2026-11-02
OSVOESA-2026-4023
assimp security update
Assimp is a library to load and process geometric scenes from various data formats. Assimp aims to provide a full asset conversion pipeline for use in game engines and real-time rendering systems of any kind, but is not limited to this purpose.
Security Fix(es):
A security vulnerability has been detected in Open Asset Import Library Assimp up to 6.0.2. The impacted element is the function MD5Importer::MakeDataUnique of the file code/AssetLib/MD5/MD5Loader.cpp. The manipulation of the argument iNewIndex leads to heap-based buffer overflow. The attack can only be performed from a local environment. The identifier of the patch is bf9dabb617c46e5133dac65cca6bff177917afcb. Applying a patch is the recommended action to fix this issue.(CVE-2026-82591)
- Record
OESA-2026-4023- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L - Updated
- 2026-11-02
OSVOESA-2026-4024
assimp security update
Assimp is a library to load and process geometric scenes from various data formats. Assimp aims to provide a full asset conversion pipeline for use in game engines and real-time rendering systems of any kind, but is not limited to this purpose.
Security Fix(es):
A security vulnerability has been detected in Open Asset Import Library Assimp up to 6.0.2. The impacted element is the function MD5Importer::MakeDataUnique of the file code/AssetLib/MD5/MD5Loader.cpp. The manipulation of the argument iNewIndex leads to heap-based buffer overflow. The attack can only be performed from a local environment. The identifier of the patch is bf9dabb617c46e5133dac65cca6bff177917afcb. Applying a patch is the recommended action to fix this issue.(CVE-2026-82591)
- Record
OESA-2026-4024- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L - Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-82591
A security vulnerability has been detected in Open Asset Import Library Assimp up to 6.0.2. The impacted element is the function MD5Importer::MakeDataUnique of the file code/AssetLib/MD5/MD5Loader.cpp. The manipulation of the argument iNewIndex leads to heap-based buffer overflow. The attack can only be performed from a local environment. The identifier of the patch is bf9dabb617c46e5133dac65cca6bff177917afcb. Applying a patch is the recommended action to fix this issue.
- Record
UBUNTU-CVE-2026-82591- CVSS 4.0
- 4.8 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N - CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
assimpDebian:12 |
All versions, plus listed versions 5.2.5~ds0-15.2.5~ds0-1.15.3.1+ds-15.3.1+ds-25.4.0+ds-1 Show 9 moreShow less5.4.1+ds-15.4.2+ds-15.4.3+ds-25.4.3+ds-36.0.2+ds-16.0.3+ds-16.0.4+ds-16.0.4+ds-36.0.5+ds-1 |
None known |
assimpDebian:13 |
All versions, plus listed versions 5.4.3+ds-25.4.3+ds-36.0.2+ds-16.0.3+ds-16.0.4+ds-16.0.4+ds-36.0.5+ds-1 |
None known |
assimpDebian:14 |
All versions, plus listed versions 5.4.3+ds-25.4.3+ds-36.0.2+ds-16.0.3+ds-16.0.4+ds-16.0.4+ds-36.0.5+ds-1 |
None known |
assimpopenEuler:24.03-LTS-SP3 |
before 5.3.1-22.oe2403sp3 | 5.3.1-22.oe2403sp3 |
assimpopenEuler:24.03-LTS-SP4 |
before 5.3.1-22.oe2403sp4 | 5.3.1-22.oe2403sp4 |
assimpopenEuler:20.03-LTS-SP4 |
before 3.3.1-39.oe2003sp4 | 3.3.1-39.oe2003sp4 |
assimpopenEuler:24.03-LTS-SP1 |
before 5.3.1-22.oe2403sp1 | 5.3.1-22.oe2403sp1 |
assimpUbuntu:16.04:LTS |
All versions, plus listed versions 3.0~dfsg-4ubuntu43.1.1~dfsg-53.2~dfsg-13.2~dfsg-23.2~dfsg-3 |
None known |
assimpUbuntu:18.04:LTS |
All versions, plus listed versions 3.3.1~dfsg-53.3.1~dfsg-5ubuntu13.3.1~dfsg-5+build14.0.1~dfsg-1~exp24.0.1~dfsg-14.1.0~dfsg-14.1.0~dfsg-24.1.0~dfsg-3 |
None known |
assimpUbuntu:20.04:LTS |
All versions, plus listed versions 4.1.0~dfsg-54.1.0~dfsg-5ubuntu15.0.1~ds0-1build1 |
None known |
Show 4 moreShow less
| Package | Affected | Fixed |
|---|---|---|
assimpUbuntu:22.04:LTS |
All versions, plus listed versions 5.0.1~ds0-25.0.1~ds0-3ubuntu15.1.4~ds0-15.1.5~ds0-15.1.6~ds0-15.2.0~ds0-25.2.1~ds0-15.2.2~ds0-1 |
None known |
assimpUbuntu:24.04:LTS |
All versions, plus listed versions 5.2.5~ds0-1.1build15.3.1+ds-15.3.1+ds-25.3.1+ds-2build1 |
None known |
assimpUbuntu:26.10 |
All versions, plus listed versions 6.0.4+ds-1build16.0.5+ds-1 |
None known |
assimpUbuntu:26.04:LTS |
All versions, plus listed versions 5.4.3+ds-26.0.2+ds-16.0.3+ds-16.0.4+ds-16.0.4+ds-1build1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-82591 is a medium vulnerability (CVSS 4.8) in Open Asset Import Library Assimp, published August 30, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.17%, the 6th percentile. Fixed in assimp 5.3.1-22.oe2403sp3.
References
vuldb.com/vuln/397086
github.com/assimp/assimp/pull/6718
Show 10 moreShow less
nvd.nist.gov/vuln/detail/CVE-2026-82591
security-tracker.debian.org/tracker/CVE-2026-82591
openeuler.org/zh/security/security-bulletins/detail?id=openEuler-SA-2026-4021
ubuntu.com/security/CVE-2026-82591
cve.org/CVERecord?id=CVE-2026-82591