SUSE · Security update for curl
Affects SUSESource GCVE Database
Mentioned vulnerabilities
Not known to be exploited.
Data as of 27 Oct 2026, 02:00 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
Exploitation evidence
Disclosed: evidence found.
CVE published 6 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
AI-suggested
A security update for curl has been released that fixes these vulnerabilities. Users should apply this update promptly to mitigate the risk of credential and cookie leaks. No additional mitigation steps are indicated beyond applying the official patch.
Description
A security update for curl addresses multiple vulnerabilities related to connection reuse and credential leaks. The fixed issues include improper handling of TLS requirements during connection reuse, incorrect reuse of HTTP Negotiate connections, proxy credential leaks during redirects, cookie leaks caused by stale custom cookie hosts, and netrc credential leaks with reused proxy connections. These vulnerabilities could potentially expose sensitive authentication information. The update also includes other bug fixes unrelated to security.
References
- suse.com/support/security/rating/ (opens in a new tab)
- ftp.suse.com/pub/projects/security/csaf/suse-su-2026_1717-1.json (opens in a new tab)
- suse.com/support/update/announcement/2026/suse-su-20261717-1/ (opens in a new tab)
- lists.suse.com/pipermail/sle-security-updates/2026-May/025886.html (opens in a new tab)
- bugzilla.suse.com/1259362 (opens in a new tab)
- bugzilla.suse.com/1262631 (opens in a new tab)
- bugzilla.suse.com/1262632 (opens in a new tab)
- bugzilla.suse.com/1262635 (opens in a new tab)
- bugzilla.suse.com/1262636 (opens in a new tab)
- bugzilla.suse.com/1262638 (opens in a new tab)
- suse.com/security/cve/CVE-2026-1965/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-4873/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-5545/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-6253/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-6276/ (opens in a new tab)
- suse.com/security/cve/CVE-2026-6429/ (opens in a new tab)