CVE-2026-49835
5.9 · MEDIUMOverview
CVE-2026-49835 is a medium-severity vulnerability affecting linuxfoundation sigstore_timestamp_authority. It was published on July 17, 2026 and has a CVSS 3.1 base score of 5.9 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Sigstore Timestamp Authority is a service for issuing RFC 3161 timestamps. Prior to 2.1.0, the global wrapMetrics middleware records raw HTTP request path r.URL.Path and raw HTTP request method r.Method as Prometheus labels for latency and request count metric vectors before routing, allowing an unauthenticated remote attacker to issue requests with random paths such as /api/v1/timestamp/<uuid> or random HTTP methods and create unbounded permanent time-series entries that exhaust memory. This issue is fixed in version 2.1.0.
Remediation
Check the references section for vendor advisories and patches from linuxfoundation. Update sigstore_timestamp_authority to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| linuxfoundation | sigstore_timestamp_authority | >= 0, < 2.1.0 | Affected |
Frequently Asked Questions
What is CVE-2026-49835?
CVE-2026-49835 is a medium-severity vulnerability affecting linuxfoundation sigstore_timestamp_authority. It was published on July 17, 2026 and has a CVSS 3.1 base score of 5.9 (MEDIUM).
How severe is CVE-2026-49835?
This vulnerability has a CVSS 3.1 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-49835?
Check the references section for vendor advisories and patches from linuxfoundation. Update sigstore_timestamp_authority to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-49835?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-49835 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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