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  4. CVE 2026 12353 rhcs memory leak during https connection leads to
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Back to active CVEs
Medium · CVSS 5.3CVE-2026-12353

Rhcs: memory leak during https connection leads to denial of serviceCVE-2026-12353

Answer in brief

CVE-2026-12353 records a Medium severity (CVSS 5.3) vulnerability in Rhcs: memory leak during https connection leads to denial of service. The current sources do not mark it as known exploited. The current feed maps Red Hat/dogtag-pki (generic), Red Hat/pki-core (generic), Red Hat/pki-core:10.6/pki-core (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jul 23, 2026Updated Nov 5, 2026Source checked Nov 5, 2026First seen by HOL Nov 5, 2026Material review Nov 5, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.3
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Red Hat/dogtag-pki (generic), Red Hat/pki-core (generic), Red Hat/pki-core:10.6/pki-core (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Red Hat/dogtag-pkigeneric*Not reported
Red Hat/pki-coregeneric*Not reported
Red Hat/pki-core:10.6/pki-coregeneric*Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Red Hat/dogtag-pki, Red Hat/pki-core, Red Hat/pki-core:10.6/pki-core.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Jul 23, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 5, 2026

Sources and claim methodology

  • Source referenceaccess.redhat.com
  • Source referencebugzilla.redhat.com
Upstream source description

An unauthenticated attacker could trigger an Out of Memory condition to crash the Java process for RHCS by repeatedly sending HTTP requests to the TLS endpoint. Depending on how the RHCS server is configured, a manual intervention to restart it may prove necessary.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-772
Source
CVE List V5
Source checked
Nov 5, 2026
References
2 linked sources
Open source record