MIT krb5 through 1.22.2 NULL Pointer Dereference via krb5_rd_cred()
MIT Kerberos 5 (krb5) through 1.22.2 contains a NULL pointer dereference in make_cred_list() in rd_cred.c that allows authenticated Kerberos clients to crash services by sending mismatched KRB-CRED arrays. Attackers can send forwarded credentials with more tickets than ticket_info entries through gss_accept_sec_context() to crash GSS-API acceptor services, causing denial of service.
CVE-2026-107778
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-107778
krb5
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/krb5/krb5",
"vendor": "MIT",
"product": "krb5",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "custom",
"lessThanOrEqual": "1.22.2"
}
],
"packageURL": "pkg:github/krb5/krb5",
"collectionURL": "https://github.com/krb5/krb5",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-107778
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #16214 · Revision 1
- Added to Heist Feed
- Publisher date