CVE-2026-71267
Last modified
CVE-2026-71267 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. microtar's mtar_write_file_header and mtar_write_dir_header functions (src/microtar.c) copy a caller-supplied entry name into the 100-byte field of a stack-allocated mtar_header_t via strcpy(h.name, name), with no check that strlen(name) is less than 100 before the copy.. EPSS estimates a 0.31% chance of exploitation in the next 30 days.
Description
microtar's mtar_write_file_header and mtar_write_dir_header functions (src/microtar.c) copy a caller-supplied entry name into the 100-byte field of a stack-allocated mtar_header_t via strcpy(h.name, name), with no check that strlen(name) is less than 100 before the copy.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| rxi | microtar | <= * |
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-71267?
How severe is CVE-2026-71267?
How do I fix CVE-2026-71267?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-71261dr_libs dr_wav.h (all versions through current master) conta…7.8
- CVE-2026-71262IoTSharp BlobStorageController.cs lacks the [Authorize] attr…9.8
- CVE-2026-71263The LINUXTCP port of FreeModbus contains an off-by-one bound…9.1
- CVE-2026-71264WLED's GET /json/cfg endpoint (registered in wled00/wled_ser…8.2
- CVE-2026-71265Domoticz's MochadTCP::MatchLine handler for MOCHAD_RFSEC mes…7.5
- CVE-2026-71266tinyobjloader-c's tinyobj_parse_and_index_mtl_file (tinyobj_…7.8
- CVE-2026-71268OpenPLC Runtime v3's compile_program function (webserver/ope…9.9
- CVE-2026-71269Rejected reason: This CVE ID has been rejected or withdrawn …
- CVE-2026-7127A weakness has been identified in SourceCodester Pharmacy Sa…7.3
- CVE-2026-71270Stirling-PDF's POST /api/v1/convert/url/pdf endpoint (Conver…8.6
- CVE-2026-71271Memos' webhook URL validation, isReservedIP (internal/webhoo…8.5
- CVE-2026-71272Memos' webhook dispatch function safeDialContext (internal/w…8.5
Are you affected by CVE-2026-71267?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST