ALSA-2026:19145

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Import Source
https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2026:19145.json
JSON Data
https://api.osv.dev/v1/vulns/ALSA-2026:19145
Related
  • CVE-2026-40355
  • CVE-2026-40356
Published
2026-05-19T00:00:00Z
Modified
2026-05-26T16:59:29.199263841Z
Summary
Important: krb5 security update
Details

Kerberos is a network authentication system, which can improve the security of your network by eliminating the insecure practice of sending passwords over the network in unencrypted form. It allows clients and servers to authenticate to each other with the help of a trusted third party, the Kerberos key distribution center (KDC).

Security Fix(es):

  • krb5: MIT Kerberos 5 (krb5): Denial of Service via integer underflow and out-of-bounds read (CVE-2026-40356)
  • krb5: MIT Kerberos 5: Denial of Service via NULL pointer dereference in NegoEx mechanism (CVE-2026-40355)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

References

Affected packages

AlmaLinux:10
krb5-devel

Package

Name
krb5-devel
Purl
pkg:rpm/almalinux/krb5-devel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.21.3-10.el10_2

Database specific

source 
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2026:19145.json"
krb5-libs

Package

Name
krb5-libs
Purl
pkg:rpm/almalinux/krb5-libs

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.21.3-10.el10_2

Database specific

source 
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2026:19145.json"
krb5-pkinit

Package

Name
krb5-pkinit
Purl
pkg:rpm/almalinux/krb5-pkinit

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.21.3-10.el10_2

Database specific

source 
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2026:19145.json"
krb5-server

Package

Name
krb5-server
Purl
pkg:rpm/almalinux/krb5-server

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.21.3-10.el10_2

Database specific

source 
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2026:19145.json"
krb5-server-ldap

Package

Name
krb5-server-ldap
Purl
pkg:rpm/almalinux/krb5-server-ldap

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.21.3-10.el10_2

Database specific

source 
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2026:19145.json"
krb5-workstation

Package

Name
krb5-workstation
Purl
pkg:rpm/almalinux/krb5-workstation

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.21.3-10.el10_2

Database specific

source 
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2026:19145.json"
krb5-xrealmauthz

Package

Name
krb5-xrealmauthz
Purl
pkg:rpm/almalinux/krb5-xrealmauthz

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.21.3-10.el10_2

Database specific

source 
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2026:19145.json"
libkadm5

Package

Name
libkadm5
Purl
pkg:rpm/almalinux/libkadm5

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.21.3-10.el10_2

Database specific

source 
"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux10/ALSA-2026:19145.json"