# CVE-2024-12397: Io.quarkus.http/quarkus-http-core: quarkus http cookie smuggling

Status: published. Published: 2024-12-12. Updated: 2026-11-05.

A flaw was found in Quarkus-HTTP, which incorrectly parses cookies with
certain value-delimiting characters in incoming requests. This issue could
allow an attacker to construct a cookie value to exfiltrate HttpOnly cookie
values or spoof arbitrary additional cookie values, leading to unauthorized
data access or modification. The main threat from this flaw impacts data
confidentiality and integrity.

## Remediation

- workaround: Currently, no mitigation is available for this vulnerability. (source: CNA: redhat)

## Affected products and versions

-  /  (quarkus-http): ≥ 0; < 5.3.4 (affected, semver). Source: CNA: redhat
- Red Hat / Cryostat 4 on RHEL 9 (cryostat/cryostat-agent-init-rhel9): ≥ 0.5.0-6; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Cryostat 4 on RHEL 9 (cryostat/cryostat-db-rhel9): ≥ 4.0.0-7; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Cryostat 4 on RHEL 9 (cryostat/cryostat-grafana-dashboard-rhel9): ≥ 4.0.0-7; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Cryostat 4 on RHEL 9 (cryostat/cryostat-openshift-console-plugin-rhel9): ≥ 4.0.0-7; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Cryostat 4 on RHEL 9 (cryostat/cryostat-operator-bundle): ≥ 4.0.0-7; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Cryostat 4 on RHEL 9 (cryostat/cryostat-ose-oauth-proxy-rhel9): ≥ 4.0.0-7; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Cryostat 4 on RHEL 9 (cryostat/cryostat-reports-rhel9): ≥ 4.0.0-7; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Cryostat 4 on RHEL 9 (cryostat/cryostat-rhel9): ≥ 4.0.0-7; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Cryostat 4 on RHEL 9 (cryostat/cryostat-rhel9-operator): ≥ 4.0.0-7; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Cryostat 4 on RHEL 9 (cryostat/cryostat-storage-rhel9): ≥ 4.0.0-7; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Cryostat 4 on RHEL 9 (cryostat/jfr-datasource-rhel9): ≥ 4.0.0-7; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / HawtIO HawtIO 4.2.0 (quarkus-http-core): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Build of Keycloak: Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat build of Keycloak 26.2 (rhbk/keycloak-operator-bundle): ≥ 26.2.4-2; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat build of Keycloak 26.2 (rhbk/keycloak-rhel9): ≥ 26.2-3; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat build of Keycloak 26.2 (rhbk/keycloak-rhel9-operator): ≥ 26.2-3; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat build of Quarkus 3.15.3 (quarkus-http-core): Version range not reported. Source: CNA: redhat
- Red Hat / Cryostat 3 (quarkus-http-core): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat build of Apache Camel 4 for Quarkus 3 (quarkus-camel-bom): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat build of Apache Camel 4 for Quarkus 3 (quarkus-cxf-bom): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat build of Apicurio Registry 2 (quarkus-http-core): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Build of Keycloak (quarkus-http-core): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat build of OptaPlanner 8 (quarkus-http-core): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Fuse 7 (quarkus-http-core): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Integration Camel K 1 (quarkus-http-core): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform 8 (quarkus-http-core): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat JBoss Enterprise Application Platform Expansion Pack (quarkus-http-core): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Process Automation 7 (quarkus-http-core): Version range not reported. Source: CNA: redhat
- Red Hat / streams for Apache Kafka (quarkus-http-core): Version range not reported. Source: CNA: redhat

## Severity and prioritization

- CVSS 3.1: 7.4 (high); CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N; source: CNA: redhat

- CISA KEV: No listing in collected sources

- EPSS: 0.93% as of 2026-11-04; percentile 60.62%

- SSVC: exploitation none; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-444

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://access.redhat.com/errata/RHBA-2025:7525 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHBA-2025:7639 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2025:0900 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2025:3018 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2025:8761 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/security/cve/CVE-2024-12397 (CNA: redhat; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2331298 (CNA: redhat; issue-tracking, x_refsource_REDHAT)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2024-12397; retrieved 2026-11-05; source updated 2026-11-05

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2024-12397; retrieved 2026-11-05; source updated Not reported

Revision: 5dbe64096dcd9a43b840feaed91c9ea495b0c1978fbf0cc61c890b0b35c08bcc

Canonical: https://y2.dev/cve/CVE-2024-12397

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