VDB
JLSEC-2026-91
JLSEC-2026-91
PUBLISHED
CVSS 9.300000190734863 CRITICAL
PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other platforms. This occurs in krb5_pac_parse in lib/krb5/krb/pac.c. Heimdal before 7.7.1 has "a similar bug."
Risk Scores
CVSS v4.0
9.300000190734863
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Julia | Kerberos_krb5_jll | 0, 0 |
Timeline
- Apr 13, 2026 CVE Published
- Apr 13, 2026 CVE Updated
References
- https://bugzilla.samba.org/show_bug.cgi?id=15203 url
- https://github.com/heimdal/heimdal/security/advisories/GHSA-64mq-fvfj-5x3c url
- https://github.com/krb5/krb5/commit/ea92d2f0fcceb54a70910fa32e9a0d7a5afc3583 url
- https://security.gentoo.org/glsa/202309-06 url
- https://security.gentoo.org/glsa/202310-06 url
- https://security.netapp.com/advisory/ntap-20230216-0008/ url
- https://security.netapp.com/advisory/ntap-20230223-0001/ url
- https://web.mit.edu/kerberos/advisories/ url
- https://web.mit.edu/kerberos/krb5-1.19/ url
- https://web.mit.edu/kerberos/krb5-1.20/README-1.20.1.txt url
- https://www.samba.org/samba/security/CVE-2022-42898.html url