CVE-2026-65610 (GCVE-0-2026-65610)
Vulnerability from cvelistv5 – Published: 2026-08-19 13:21 – Updated: 2026-08-20 15:57 X_Open Source
VLAI
EPSS
VEX
Title
Numeric Truncation Error in nnn
Summary
nnn stores homelen variable as uchar_t, which can only represent values in the range 0-255. An attacker who can influence the victim's execution environment can provide an arbitrary HOME path with length that is truncated to 0. The expression (homelen - 1) is promoted to signed int and becomes -1 and producing an out-of-bounds read and an out-of-bounds write one byte before the path buffer.
Maintainer of this project was notified about this vulnerability. It might has been addressed, but the maintainer did not provide a vulnerable version range. Only version 5.2 was tested and confirmed as vulnerable.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 15:32 UTC
CWE
- CWE-197 - Numeric truncation error
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/08/CVE-2026-65609 | third-party-advisory |
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