CVE-2026-5516

MEDIUMNVD 4.44.4—Trending — 3 sources updated this week

4.4

IBM WebSphere Application Server - Liberty 22.0.0.11 through 26.0.0.5 IBM WebSphere Application Server Liberty could allow a remote attacker to bypass security under limited conditions by exploiting a specific timing window.

CVSS v3: 4.4
EG Score: 4.4(high)
EPSS: 13.9%
KEV: Not listed

Published

May 27, 2026

Last Modified

June 2, 2026

References (1)

psirt@ushttps://www.ibm.com/support/pages/node/7273425

Vendor Advisories for CVE-2026-5516(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

GHSA-gccj-9cv3-fp5p
GitHub Security AdvisoriesMedium
IBM WebSphere Application Server - Liberty 22.0.0.11 through 26.0.0.5 IBM WebSphere Application...

Weakness Classification(1)

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

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)

Data Freshness Timeline

(refreshed 20× 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.

2026-06-06 12:06 UTCEG score recompute
2026-06-06 12:06 UTCGHSA enrichment
2026-06-05 22:47 UTCepss_batch
2026-06-05 14:20 UTCEG score recompute
2026-06-05 14:20 UTCGHSA enrichment
2026-06-05 06:10 UTCepss_batch
2026-06-05 06:10 UTCepss_batch
2026-06-04 16:34 UTCEG score recompute
2026-06-04 16:34 UTCGHSA enrichment
2026-06-04 13:12 UTCepss_batch
2026-06-04 13:12 UTCepss_batch
2026-06-03 18:48 UTCEG score recompute
2026-06-03 18:48 UTCGHSA enrichment
2026-06-02 21:02 UTCEG score recompute
2026-06-02 21:02 UTCGHSA enrichment
2026-06-02 20:13 UTCepss_batch
2026-06-01 23:16 UTCEG score recompute
2026-06-01 23:16 UTCGHSA enrichment
2026-06-01 13:52 UTCepss_batch
2026-06-01 13:52 UTCepss_batch

Frequently asked(5)

What is CVE-2026-5516?

CVE-2026-5516 is a medium vulnerability published on May 27, 2026. IBM WebSphere Application Server - Liberty 22.0.0.11 through 26.0.0.5 IBM WebSphere Application Server Liberty could allow a remote attacker to bypass security under limited conditions by exploiting a specific timing window.

When was CVE-2026-5516 disclosed?

CVE-2026-5516 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on June 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-5516 actively exploited?

CVE-2026-5516 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 13.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-5516?

CVE-2026-5516 has a CVSS v3 base score of 4.4 (NVD).

How do I remediate CVE-2026-5516?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-5516, 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-2026-5516

📅 Published

🔄 Last Modified

🔗 References (1)

📣 Vendor Advisories for CVE-2026-5516(1)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)