CVE-2026-104115

A stack-based buffer overflow in the illumos reparse point daemon (reparsed) allows a local user to crash the daemon. get_fs_locations() in usr/src/cmd/fs.d/nfs/rp_basic/libnfs_basic.c, part of the nfs-basic reparse plugin, copies the host and path components of a reparse string into a fixed 1024-byte stack buffer without checking their length. The reparsed door at /var/run/reparsed_door is readable by all users and the door server does not check the caller's credentials, so an unprivileged local user can send an nfs-basic request with an overlong host or path component to overflow the buffer. On systems built with stack protection, which is the default, this causes reparsed to abort; repeated requests place the svc:/system/filesystem/reparse service into maintenance. The service is disabled by default. The flaw has existed since 2009 (illumos-gate commit 2f172c55), and affects any illumos distribution prior to illumos-gate commit 6a2df4aa.

CVSS

No CVSS.

References

Link	Resource
https://github.com/illumos/illumos-gate/commit/6a2df4aa5381599179ab6afb3165db81960dee35
https://illumos.org/issues/18496
https://illumos.topicbox.com/groups/developer/T3b859664594b7762/cve-2026-104112-to-cve-2026-104117-denial-of-service-and-missing-authorization-in-door-servers

Configurations

No configuration.

History

09 Oct 2026, 15:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-09 15:17

Updated : 2026-10-15 19:17

NVD link : CVE-2026-104115

Mitre link : CVE-2026-104115

CVE.ORG link : CVE-2026-104115

JSON object : View

Products Affected

No product.

CWE

CWE-121

Stack-based Buffer Overflow

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The reparsed door at /var/run/reparsed_door is readable by all users and the door server does not check the caller's credentials, so an unprivileged local user can send an nfs-basic request with an overlong host or path component to overflow the buffer. On systems built with stack protection, which is the default, this causes reparsed to abort; repeated requests place the svc:/system/filesystem/reparse service into maintenance. The service is disabled by default. The flaw has existed since 2009 (illumos-gate commit 2f172c55), and affects any illumos distribution prior to illumos-gate commit 6a2df4aa."}], "lastModified": "2026-10-15T19:17:14.433", "sourceIdentifier": "0ca53633-f0b5-4853-ba72-e0a2e62000d0"}