CVE-2026-107778

MIT Kerberos 5 krb5 through 1.22.2 contains a NULL pointer dereference in makecredlist in rdcred.c that allows authenticated Kerberos clients to crash services by sending mismatched KRB-CRED arrays. Attackers can send forwarded credentials with more tickets than ticketinfo entries through...

CVE-2026-107778

MIT Kerberos 5 (krb5 ) versions through 1.22.2 are vulnerable to a NULL pointer dereference within the make_cred_list() function in rd_cred.c. This flaw occurs when authenticated Kerberos clients send mismatched KRB-CRED arrays, specifically by sending forwarded credentials containing more ticket...

CLEANSTART-2024-HW06037 issue was discovered in MIT Kerberos 5 (aka krb5) through 1

Security vulnerability affects the krb5 package. An issue was discovered in MIT Kerberos 5 aka krb5 through 1...

CLEANSTART-2024-LS60465 issue was discovered in MIT Kerberos 5 (aka krb5) through 1

Security vulnerability affects the krb5 package. An issue was discovered in MIT Kerberos 5 aka krb5 through 1...

CLEANSTART-2024-EO56107 Reachable Assertion issue was discovered in the KDC in MIT Kerberos 5 (aka krb5) before 1

Security vulnerability affects the krb5 package. A Reachable Assertion issue was discovered in the KDC in MIT Kerberos 5 aka krb5 before 1...

CLEANSTART-2024-AC14298 PAC parsing in MIT Kerberos 5 (aka krb5) before 1

CVE-2022-42898 affects multiple packages. PAC parsing in MIT Kerberos 5 aka krb5 before 1. See references for individual vulnerability details...

CLEANSTART-2024-TG46953 Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1

Security vulnerability affects the krb5 package. The Key Distribution Center KDC in MIT Kerberos 5 aka krb5 before 1...

CLEANSTART-2024-HV80786 In MIT Kerberos 5 (aka krb5) before 1

Security vulnerability affects the krb5 package. In MIT Kerberos 5 aka krb5 before 1...

AlmaLinux 9.2 [TuxCare] Security Update: krb5-devel / krb5-libs / krb5-pkinit / krb5-server / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1782979178)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1782979178 advisory. - In MIT Kerberos 5 aka krb5 before 1.22.3, there is a NULL pointer dereference if an application calls gssacceptseccontext on a...

CentOS Linux 8.4 [TuxCare] Security Update: krb5-devel / krb5-libs / krb5-pkinit / krb5-server / libkadm5 (CENTOS8.4:CLSA-2025:1742723370)

The CentOS Linux 8.4 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.4:CLSA-2025:1742723370 advisory. - In MIT Kerberos 5 aka krb5 before 1.22 with incremental propagation, there is an integer overflow for a large update size to resize in...

CentOS Linux 7 [TuxCare] Security Update: krb5-devel / krb5-libs / krb5-pkinit / krb5-server / etc Multiple Vulnerabilities (CENTOS7:CLSA-2024:1726840907)

The CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS7:CLSA-2024:1726840907 advisory. - In MIT Kerberos 5 aka krb5 before 1.21.3, an attacker can modify the plaintext Extra Count field of a confidential GSS krb5 wrap token...

Rocky Linux 8 [CIQ] Security Update: krb5-debuginfo / krb5-debugsource / krb5-devel / etc Multiple Vulnerabilities (crlsa-2026_16799)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-202616799 advisory. 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...

CentOS Linux 8.5 [TuxCare] Security Update: krb5-devel / krb5-libs / krb5-pkinit / krb5-server / libkadm5 (CENTOS8.5:CLSA-2025:1742662173)

The CentOS Linux 8.5 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.5:CLSA-2025:1742662173 advisory. - In MIT Kerberos 5 aka krb5 before 1.22 with incremental propagation, there is an integer overflow for a large update size to resize in...

AlmaLinux 9.2 [TuxCare] Security Update: krb5-devel / krb5-libs / krb5-pkinit / krb5-server / etc (ALMALINUX9.2:CLSA-2024:1720178212)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2024:1720178212 advisory. - lib/kadm5/kadmrpcxdr.c in MIT Kerberos 5 aka krb5 before 1.20.2 and 1.21.x before 1.21.1 frees an uninitialized pointer. A remote...

AlmaLinux 9.2 [TuxCare] Security Update: krb5-devel / krb5-libs / krb5-pkinit / krb5-server / etc (ALMALINUX9.2:CLSA-2024:1718787475)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2024:1718787475 advisory. - kdc/dotgsreq.c in MIT Kerberos 5 aka krb5 1.21 before 1.21.2 has a double free that is reachable if an authenticated user can trigger an...

AlmaLinux 9.2 [TuxCare] Security Update: krb5-devel / krb5-libs / krb5-pkinit / krb5-server / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2024:1726769331)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2024:1726769331 advisory. - In MIT Kerberos 5 aka krb5 before 1.21.3, an attacker can modify the plaintext Extra Count field of a confidential GSS krb5 wrap...

CentOS Linux 8 [TuxCare] Security Update: krb5-devel / krb5-libs / krb5-pkinit / krb5-server / etc Multiple Vulnerabilities (CENTOS-STREAM8:CLSA-2026:1779875639)

The CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS-STREAM8:CLSA-2026:1779875639 advisory. - lib/kadm5/kadmrpcxdr.c in MIT Kerberos 5 aka krb5 before 1.20.2 and 1.21.x before 1.21.1 frees an uninitialized pointer. A remo...

EulerOS Virtualization 2.13.1 : krb5 (EulerOS-SA-2026-3177)

According to the versions of the krb5 packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : In MIT Kerberos 5 aka krb5 before 1.22.3, there is a NULL pointer dereference if an application calls gssacceptseccontext on a system...

PT-2026-80501

In MIT Kerberos 5 aka krb5 before 1.22.3, there is an integer underflow and resultant out-of-bounds read if an application calls gss accept sec context on a system with a NegoEx mechanism registered in /etc/gss/mech. An unauthenticated remote attacker can trigger this, possibly causing the proces...

PT-2026-80500

In MIT Kerberos 5 aka krb5 before 1.22.3, there is a NULL pointer dereference if an application calls gss accept sec context on a system with a NegoEx mechanism registered in /etc/gss/mech. An unauthenticated remote attacker can trigger this, causing the process to terminate in parse nego message...