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TI-2026-65732 Aliases CVE-2026-103547GHSA-f239-ggxr-g679

Incorrect authorization in OpenBSD

Priority MEDIUM 42CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
Present
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-863.

Summary

In ldapd in OpenBSD 7.8 before errata 057 and 7.9 before errata 021, delegated BSD authentication results are correlated only by the LDAP child process client file descriptor and LDAP message ID. After a connection closes, a later connection that reuses the same file descriptor and message ID can receive the earlier authentication result. A remote attacker who can reach ldapd can complete a Bind as another identity. A missing connection can also cause a NULL pointer dereference. (ldapd is not enabled by default.)

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00372 31st percentileScored 2026-11-07
Fix Fixed OpenBSD (OpenBSD): errata 057, errata 021

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OpenBSDOpenBSD7.8 to before errata 057; 7.9 to before errata 021errata 057, errata 021Patch availableCNA
  • OpenBSD VendorOpenBSD Affected 7.8 to before errata 057; 7.9 to before errata 021 Fixed in errata 057, errata 021 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*——OpenBSD
  • cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:* Versions — — ·OpenBSD

Remediation

  • Fix · CNA OpenBSD (OpenBSD) Fixed in errata 057, errata 021

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-103547
  2. 2026-10-03 Alias added: GHSA-f239-ggxr-g679

References

Other 4

  • TI-2020-05854 smtp_mailaddr in smtp_session.c in OpenSMTPD 6.6, as used in OpenBSD 6.6 and other… KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-19792 The PKCS#11 feature in ssh-agent in OpenSSH before 9.3p2 has an insufficiently… CVSS 3.1CRITICAL 9.8
  • TI-2002-00376 Integer overflow in xdr_array function in RPC servers for operating systems that use… CVSS 3.1CRITICAL 9.8
  • TI-2024-05929 Openssh: regresshion - race condition in ssh allows rce/dos CVSS 3.1HIGH 8.1
  • TI-2003-00437 Off-by-one error in the fb_realpath() function, as derived from the realpath function in… CVSS 3.1CRITICAL 9.8
  • TI-2007-05153 Stack-based buffer overflow in the cons_options function in options.c in dhcpd in OpenBSD… CVSS 2.0HIGH 7.2
See all 369 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences