Vulnerability · CVE-2026-94265
Authorization: Negotiate sent to foreign origin
Published Oct 20, 2026 · catalog updated Oct 22, 2026 · Authorization: Negotiate sent to
Last checked Oct 25, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2026-94265. EPSS is 0.28%. Act only if a listed version of Authorization: Negotiate sent to is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (Authorization: Negotiate sent to).
- No version range is stored. A customer cannot check an installed version against this record.
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2026-92390 · High
- CVE-2026-87866 · Unknown
- CVE-2026-87861 · Unknown
- CVE-2026-86415 · Unknown
- CVE-2026-86413 · Unknown
- Severity
- Critical—
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.28%
- Remediation
- Not established
- Affected products
- vendor curl curl
When processing an HTTP redirect to a URL containing userinfo (a component), curl might erroneously retain and re-transmit the original host's HTTP Negotiate authentication state. Consequently, a malicious server can trigger a redirect containing arbitrary userinfo to force curl to send a freshly minted Kerberos ticket—generated using the ambient identity of the client process to an untrusted third-party host, effectively bypassing the domain-scoping restrictions normally enforced by the absence of .
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor curl curlversion unspecified
How to fix CVE-2026-94265
No stored fix
No vendor fix text is stored. Use the linked advisory before you change production.
Version check
No version range is stored, so an installed version cannot be checked on this page.
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-94265. EPSS is 0.28%. Act only if a listed version of Authorization: Negotiate sent to is installed.
Which versions are affected?
Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.28%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Oct 20, 2026 · NIST NVD
Detected
When processing an HTTP redirect to a URL containing userinfo (a component), curl might erroneously retain and re-transmit the original host's HTTP Negotiate authentication state. Consequently, a malicious server can trigger a redirect containing arbitrary userinfo to force curl to send a freshly minted Kerberos ticket—generated using the ambient identity of the client process to an untrusted thir
Oct 22, 2026 · NIST NVD
Updated
When processing an HTTP redirect to a URL containing userinfo (a component), curl might erroneously retain and re-transmit the original host's HTTP Negotiate authentication state. Consequently, a malicious server can trigger a redirect containing arbitrary userinfo to force curl to send a freshly minted Kerberos ticket—generated using the ambient identity of the client process to an untrusted thir
Sources
- CVE.orgVulnerability recordCVE-2026-94265
When processing an HTTP redirect to a URL containing userinfo (a component), curl might erroneously retain and re-transmit the original host's HTTP Negotiate authentication state. Consequently, a malicious server can trigger a redirect containing arbitrary userinfo to force curl
cve.org - FIRST EPSSExploitation probabilityCVE-2026-94265
30-day exploitation probability 0.28%
first.org - NIST NVDVulnerability recordCVE-2026-94265
When processing an HTTP redirect to a URL containing userinfo (a component), curl might erroneously retain and re-transmit the original host's HTTP Negotiate authentication state. Consequently, a malicious server can trigger a redirect containing arbitrary use
nvd.nist.gov - Tenable CVE DatabaseVulnerability recordCVE-2026-94265
When processing an HTTP redirect to a URL containing userinfo (a component), curl might erroneously retain and re-transmit the original host's HTTP Negotiate authentication state. Consequently, a malicious server can trigger a redirect containing arbitrary userinfo to force curl to send a freshly minted Kerberos ticket—generated using the ambient identity of the client process to an untrusted thir
tenable.com
References
Freshness
Last verified in this catalog Oct 25, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSOct 25, 2026
- CVE.orgOct 23, 2026
- Tenable CVE DatabaseOct 23, 2026
- NIST NVDOct 22, 2026