Vulnerability · Published Aug 21, 2026 · Assigned by vmware
CVE-2026-59323Micrometer Tracing Brave Bridge W3C Baggage propagation DoS vulnerability
Medium 5.3
In plain English
A medium-severity resource allocation without limits in Micrometer Tracing from Spring. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities).
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.4%top 65.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Spring | Micrometer Tracing | 1.7.01.6.0 – through 1.6.61.5.0 – through 1.5.120 – through 1.4.13 |
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L