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High 8.8Published Jun 17, 2026
CVE-2026-55738A stack-based buffer overflow exists in the raw_to_header function in src/microtar.c in rxi microtar 0.1.0.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
A stack-based buffer overflow exists in the raw_to_header function in src/microtar.c in rxi microtar 0.1.0. The function copies the 100-byte name and linkname fields of a TAR header with strcpy without guaranteeing null termination of the source.
- CVSS
- 8.8 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-121, CWE-170
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Deferred
- Record last updated
- Aug 10, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
No affected products are listed yet.
References
- https://github.com/rxi/microtar
- https://github.com/rxi/microtar/blob/master/src/microtar.c#L111
- https://raw.githubusercontent.com/rxi/microtar/master/src/microtar.c
The CVE record on cve.org NVD's entry
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