CVE-2026-1933

medium

Published 2026-05-27 · Modified 2026-06-02

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CVSS v3

6.5

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

CVSS v4 NEW

—

not yet in upstream

VIR risk

6.5

Description

A flaw was found in Samba’s handling of NTFS-style reparse points on shares configured with read only = yes. Due to missing SMB-layer access checks, authenticated users with underlying filesystem write permissions may create or delete reparse point metadata through SMB operations even on read-only exports. This could allow modification of SMB-visible file behavior, including converting files into symbolic links or other reparse point types.

Predictions

Exploit likelihood

75%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

Red Hat Affected 4 releases

Version	Status	Fixed in
10.0	Affected	—
9.0	Affected	—
8.0	Affected	—
7.0	Affected	—

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`2:4.22.8+dfsg-0+deb13u2`
sid	Fixed	`2:4.24.3+dfsg-1`
forky	Fixed	`2:4.24.3+dfsg-1`
bullseye	Fixed	`0`
bookworm	Fixed	`0`

Application impact

Vendor	Product	Versions	Fixed
redhat	openshift_container_platform	`4.0`
samba	samba	`{"startIncluding":"4.1.0","endExcluding":"4.2.2"}`	`4.2.2`

References

CWEs

CWE-284

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.