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CVE-2026-6848 Red Hat CVE debrief

CVE-2026-6848 is a medium-severity authentication flaw in Red Hat Quay where password re-verification for sensitive operations can be bypassed. According to the published description, this can let a user with a timed-out session, or an attacker with access to an idle authenticated browser session, complete privileged actions such as token generation or robot account creation without re-entering valid credentials. NVD maps the issue to CWE-613 and rates it CVSS 5.4 (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N).

Vendor
Red Hat
Product
Red Hat Quay 3
CVSS
MEDIUM 5.4
CISA KEV
Not listed in stored evidence
Original CVE published
2026-04-22
Original CVE updated
2026-05-20
Advisory published
2026-04-22
Advisory updated
2026-05-20

Who should care

Red Hat Quay administrators, security teams, and anyone responsible for managing token generation or robot account creation should review this issue. It is most relevant in environments where authenticated sessions may remain idle or where sensitive Quay actions rely on a re-authentication prompt for protection.

Technical summary

The flaw affects Red Hat Quay’s password re-verification flow for sensitive operations. When Quay requests re-authentication, the prompt can be bypassed, allowing sensitive actions to proceed even when credentials are invalid or a session has timed out. The result is unauthorized execution of privileged operations without a successful credential re-check. The NVD entry lists the vulnerable CPE as redhat:quay:3.0.0 and identifies CWE-613 as the primary weakness.

Defensive priority

Medium priority. The issue is network-reachable and does not require user interaction, but it still depends on access to an authenticated session and is rated CVSS 5.4. Defenders should treat it as a focused authorization bypass affecting high-value administrative operations rather than a broad availability risk.

Recommended defensive actions

  • Review the Red Hat advisory for CVE-2026-6848 and apply the vendor-recommended remediation for affected Red Hat Quay deployments.
  • Audit Quay usage for sensitive actions such as token generation and robot account creation, especially where sessions may remain idle.
  • Reduce exposure from idle authenticated browser sessions by enforcing shorter session lifetimes and re-authentication controls where feasible.
  • Monitor for unexpected creation of tokens or robot accounts and investigate any sensitive operations performed after session timeout conditions.
  • Verify whether your Quay deployment matches the affected CPE listed by NVD (redhat:quay:3.0.0) before prioritizing remediation.

Evidence notes

This debrief is based on the supplied NVD record and the linked Red Hat vendor references. The CVE was published on 2026-04-22 and last modified on 2026-05-20, which are the dates used for timeline context here. NVD lists references to the Red Hat advisory and Bugzilla issue 2460119, along with CVSS 3.1 vector AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N and CWE-613.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-6848 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-6848

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-6848 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-6848

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.