CVE-2024-33661

CRITICALNVD 9.19.1—

9.1

Portainer before 2.20.0 allows redirects when the target is not index.yaml.

CVSS v3: 9.1
EG Score: 9.1(medium)
EPSS: 25.7%
KEV: Not listed

Published

April 26, 2024

Last Modified

May 21, 2025

References (8)

cve@mitrehttps://github.com/portainer/portainer/compare/2.19.4...2.20.0
cve@mitrehttps://github.com/portainer/portainer/pull/11233
cve@mitrehttps://github.com/portainer/portainer/pull/11236
cve@mitrehttps://www.portainer.io/
af854a3a-2127-422b-91ae-364da2661108https://github.com/portainer/portainer/compare/2.19.4...2.20.0
af854a3a-2127-422b-91ae-364da2661108https://github.com/portainer/portainer/pull/11233
af854a3a-2127-422b-91ae-364da2661108https://github.com/portainer/portainer/pull/11236
af854a3a-2127-422b-91ae-364da2661108https://www.portainer.io/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-601URL Redirection to Untrusted Site (Open Redirect)

Data Freshness Timeline

(refreshed 14× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-04 13:11 UTCepss_batch
2026-06-04 13:11 UTCepss_batch
2026-06-04 13:11 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
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2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-26 13:43 UTCepss_batch

Frequently asked(5)

What is CVE-2024-33661?

CVE-2024-33661 is a critical vulnerability published on April 26, 2024. Portainer before 2.20.0 allows redirects when the target is not index.yaml.

When was CVE-2024-33661 disclosed?

CVE-2024-33661 was first published in the National Vulnerability Database on April 26, 2024, with the most recent update on May 21, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2024-33661 actively exploited?

CVE-2024-33661 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 25.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2024-33661?

CVE-2024-33661 has a CVSS v3 base score of 9.1 (NVD).

How do I remediate CVE-2024-33661?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-33661, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2024-33661

📅 Published

🔄 Last Modified

🔗 References (8)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2024-33661?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (8)

Frequently asked(5)

Related CVEs(same CWE)