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Vulnerabilities

Vulnerability · CVE-2026-92388

CVE-2026-92388 is listed by USN-8932-1: curl vulnerabilities.

Published Oct 14, 2026 · Canonical Ubuntu

Open the advisory

Exploitation likelihood is not on this record for CVE-2026-92388. A missing EPSS score is not a low risk. Compare Canonical Ubuntu with the linked advisory before you change production.

Gaps on this record

  • 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.
  • EPSS is missing. A missing score is not a low risk.
Severity
Unknown—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
Not in the current FIRST EPSS dataset
Remediation
Vendor / distro source
Affected products
Canonical Ubuntu

CVE-2026-92388 is listed by USN-8932-1: curl vulnerabilities.

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2026-92388

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

Exploitation likelihood is not on this record for CVE-2026-92388. A missing EPSS score is not a low risk. Compare Canonical Ubuntu with the linked advisory before you change production.

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 is absent from the current FIRST dataset. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Ubuntu security

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.

  1. Oct 14, 2026 · Ubuntu Security Notices

    Detected

    Stanislav Fort discovered that curl did not properly clear AWS SigV4 authentication state when CURLOPT_AWS_SIGV4 was set to NULL. An attacker could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2026-86409) Stanislav Fort discovered that an HTTP proxy could trick libcurl into sending credentials to the proxy itself by r

Sources

  • CVE.orgVulnerability recordCVE-2026-92388

    Official CVE identifier

    cve.org
  • Ubuntu Security NoticesVendor advisoryCVE-2026-92388

    Stanislav Fort discovered that curl did not properly clear AWS SigV4 authentication state when CURLOPT_AWS_SIGV4 was set to NULL. An attacker could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2026-8

    ubuntu.com

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.