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CVE

DEBIAN-CVE-2026-86345

A flaw was found in 389-ds-base.
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CVE

DEBIAN-CVE-2026-86345

A flaw was found in 389-ds-base.

A flaw was found in 389-ds-base. The server does not discard plaintext bytes already buffered from a client connection when negotiating StartTLS, allowing an on-path attacker to inject a crafted LDAP message that is processed after the TLS upgrade and whose response is delivered to the client in place of the client's own pending operation's response, due to messageID collision. This can cause a client application to treat a failed authentication (bind) attempt as successful.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
-
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://security-tracker.debian.org/tracker/CVE-2026-86345

Severity

9

CVSS Score
0
10

Basic Information

Base CVSS
9
EPSS Probability
0%
EPSS Percentile
0%
Introduced Version
0
Fix Available

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