Vulnerability · Published Sep 22, 2026 · Assigned by GitHub_M
CVE-2026-81882radare2: Missing string termination causes heap out-of-bounds read in radare2 bplist parser
Low 3.3
In plain English
A low-severity out-of-bounds read in radare2 from radareorg. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities).
Official description
radare2 is a UNIX-like reverse engineering framework and command-line toolset. Prior to 6.2.0, radare2's binary property-list Unicode parser was vulnerable because the binary-property-list Unicode parser underallocated an uninitialized UTF-8 destination and did not guarantee NUL termination. The vulnerability is triggered by running the explicit pFB or pFBj commands on untrusted binary property-list data. The json encoder treated the converted data as a nul-terminated c string and could continue reading beyond the allocation. This can cause disclosure of uninitialized or adjacent heap contents in JSON output and possible process termination. This issue is fixed in version 6.2.0.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:26.04:LTS | radare2 | no fix listed | UBUNTU-CVE-2026-81882 |
| Ubuntu:26.10 | radare2 | no fix listed | UBUNTU-CVE-2026-81882 |
Affected products (as reported)
Weakness: CWE-125, CWE-170 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
References
- https://github.com/radareorg/radare2/security/advisories/GHSA-r5cr-f9p6-5pvj x_refsource_CONFIRM
- https://github.com/radareorg/radare2/issues/26227 x_refsource_MISC
- https://github.com/radareorg/radare2/commit/38d82a949626dba3783f40508bb66179e631fa45 x_refsource_MISC
- https://github.com/radareorg/radare2/releases/tag/6.2.0 x_refsource_MISC