CVE-2026-55738

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 v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
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

Configurations

No configuration.

History

No history.

Information

Published : 2026-06-17 14:18

Updated : 2026-08-10 12:17

NVD link : CVE-2026-55738

Mitre link : CVE-2026-55738

CVE.ORG link : CVE-2026-55738

JSON object : View

Products Affected

No product.

CWE

CWE-121

Stack-based Buffer Overflow

CWE-170

Improper Null Termination

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