CVE-2026-59323

MEDIUMCVSS 5.3/10EPSS 0.37%

Last modified

CVE-2026-59323 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. An application using Micrometer Tracing with W3C baggage propagation in the Brave bridge is vulnerable to denial of service (DoS) due to unbounded object allocation when extracting incoming baggage headers. Micrometer Tracing 1.7.0 Micrometer Tracing 1.6.0 - 1.6.6 Micrometer Tracing 1.5.0 - 1.5.12 Micrometer Tracing 1.4.13 and earlier. EPSS estimates a 0.37% chance of exploitation in the next 30 days.

Description

An application using Micrometer Tracing with W3C baggage propagation in the Brave bridge is vulnerable to denial of service (DoS) due to unbounded object allocation when extracting incoming baggage headers. Micrometer Tracing 1.7.0 Micrometer Tracing 1.6.0 - 1.6.6 Micrometer Tracing 1.5.0 - 1.5.12 Micrometer Tracing 1.4.13 and earlier

Metrics

EPSS Probability
0.37%

30.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
SpringMicrometer Tracing1.7.0; >= 1.6.0, <= 1.6.6; >= 1.5.0, <= 1.5.12; <= 1.4.13

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is CVE-2026-59323?
An application using Micrometer Tracing with W3C baggage propagation in the Brave bridge is vulnerable to denial of service (DoS) due to unbounded object allocation when extracting incoming baggage headers. Micrometer Tracing 1.7.0 Micrometer Tracing 1.6.0 - 1.6.6 Micrometer Tracing 1.5.0 - 1.5.12 Micrometer Tracing 1.4.13 and earlier
How severe is CVE-2026-59323?
CVE-2026-59323 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.37% probability of exploitation in the next 30 days.
How do I fix CVE-2026-59323?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST