CVE-2026-81882: CWE-125: Out-of-bounds Read in radareorg radare2
CVE-2026-81882 is a low-severity out-of-bounds read vulnerability in radare2 prior to version 6.2.0. The issue arises in the binary property-list Unicode parser, which underallocates memory and does not ensure NUL termination when processing UTF-8 data. Triggered by specific commands on untrusted data, this flaw can cause disclosure of uninitialized or adjacent heap memory in JSON output and may lead to process termination. The vulnerability is fixed in radare2 version 6.2.0.
AI Analysis
Technical Summary
radare2 versions before 6.2.0 contain a vulnerability in the binary property-list Unicode parser. The parser underallocates an uninitialized UTF-8 destination buffer and fails to guarantee NUL termination. When the pFB or pFBj commands are run on untrusted binary property-list data, the JSON encoder treats the converted data as a NUL-terminated C string, potentially reading beyond the allocated buffer. This results in an out-of-bounds read (CWE-125) and can disclose uninitialized or adjacent heap contents in the JSON output, possibly causing process termination. The issue is resolved in version 6.2.0.
Potential Impact
An attacker providing crafted binary property-list data to radare2 can cause the software to read beyond allocated memory, leading to disclosure of uninitialized or adjacent heap memory contents in JSON output. This may also cause the process to terminate unexpectedly. The confidentiality impact is limited to partial disclosure of memory contents. There is no indication of integrity or availability impact beyond possible process termination.
Mitigation Recommendations
This vulnerability is fixed in radare2 version 6.2.0. Users should upgrade to version 6.2.0 or later to remediate this issue. No additional mitigation steps are indicated or required.
CVE-2026-81882: CWE-125: Out-of-bounds Read in radareorg radare2
Description
CVE-2026-81882 is a low-severity out-of-bounds read vulnerability in radare2 prior to version 6.2.0. The issue arises in the binary property-list Unicode parser, which underallocates memory and does not ensure NUL termination when processing UTF-8 data. Triggered by specific commands on untrusted data, this flaw can cause disclosure of uninitialized or adjacent heap memory in JSON output and may lead to process termination. The vulnerability is fixed in radare2 version 6.2.0.
CVSS v3.1
Score 3.3low
Affected software
radareorg
radare2
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
radare2 versions before 6.2.0 contain a vulnerability in the binary property-list Unicode parser. The parser underallocates an uninitialized UTF-8 destination buffer and fails to guarantee NUL termination. When the pFB or pFBj commands are run on untrusted binary property-list data, the JSON encoder treats the converted data as a NUL-terminated C string, potentially reading beyond the allocated buffer. This results in an out-of-bounds read (CWE-125) and can disclose uninitialized or adjacent heap contents in the JSON output, possibly causing process termination. The issue is resolved in version 6.2.0.
Potential Impact
An attacker providing crafted binary property-list data to radare2 can cause the software to read beyond allocated memory, leading to disclosure of uninitialized or adjacent heap memory contents in JSON output. This may also cause the process to terminate unexpectedly. The confidentiality impact is limited to partial disclosure of memory contents. There is no indication of integrity or availability impact beyond possible process termination.
Mitigation Recommendations
This vulnerability is fixed in radare2 version 6.2.0. Users should upgrade to version 6.2.0 or later to remediate this issue. No additional mitigation steps are indicated or required.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-08-27T17:48:42.122Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ab29c3cf7a7c54106580d66
Added to database: 09/22/2026, 15:18:20 UTC
Last enriched: 09/22/2026, 15:32:55 UTC
Last updated: 09/22/2026, 15:51:20 UTC
Views: 6
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