Answer in brief
CVE-2026-40984 records a High severity (CVSS 7.5) vulnerability in Micrometer HTTP server instrumentations DoS vulnerability. The current sources do not mark it as known exploited. The current feed maps Spring/Micrometer (generic), Spring/Micrometer (generic), Spring/Micrometer (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Spring/Micrometer (generic), Spring/Micrometer (generic), Spring/Micrometer (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Spring/Micrometergeneric | >=1.16.0 <1.16.5.1 || >=1.15.0 <1.15.11.1 || >=1.14.0 <1.14.16 || >=1.13.0 <1.13.19 || >=1.9.0 <1.9.18 | 1.16.5.1, 1.15.11.1, 1.14.16, 1.13.19, 1.9.18 |
| Spring/Micrometergeneric | >=1.16.0 <1.16.5.1 || >=1.15.0 <1.15.11.1 || >=1.14.0 <1.14.16 || >=1.13.0 <1.13.19 | 1.16.5.1, 1.15.11.1, 1.14.16, 1.13.19 |
| Spring/Micrometergeneric | >=1.16.0 <1.16.6 || >=1.15.0 <1.15.11. || >=1.14.0 <1.14.15.1 || >=1.13.0 <1.13.19 | 1.16.6, 1.15.11., 1.14.15.1, 1.13.19 |
Published upstream
Jun 9, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 23, 2026
In Micrometer, it is possible for a user to provide specially crafted HTTP requests that may cause a denial-of-service (DoS) condition. Affected versions: micrometer-core 1.16.0 through 1.16.5; 1.15.0 through 1.15.11; 1.14.0 through 1.14.15; 1.13.0 through 1.13.18; 1.9.0 through 1.9.17. micrometer-jetty11 1.16.0 through 1.16.5; 1.15.0 through 1.15.11; 1.14.0 through 1.14.15; 1.13.0 through 1.13.18. micrometer-jetty12 1.16.0 through 1.16.5; 1.15.0 through 1.15.11; 1.14.0 through 1.14.15; 1.13.0 through 1.13.18.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-40984 records a High severity (CVSS 7.5) vulnerability in Micrometer HTTP server instrumentations DoS vulnerability. The current sources do not mark it as known exploited. The current feed maps Spring/Micrometer (generic), Spring/Micrometer (generic), Spring/Micrometer (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Spring/Micrometer (generic), Spring/Micrometer (generic), Spring/Micrometer (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Spring/Micrometergeneric | >=1.16.0 <1.16.5.1 || >=1.15.0 <1.15.11.1 || >=1.14.0 <1.14.16 || >=1.13.0 <1.13.19 || >=1.9.0 <1.9.18 | 1.16.5.1, 1.15.11.1, 1.14.16, 1.13.19, 1.9.18 |
| Spring/Micrometergeneric | >=1.16.0 <1.16.5.1 || >=1.15.0 <1.15.11.1 || >=1.14.0 <1.14.16 || >=1.13.0 <1.13.19 | 1.16.5.1, 1.15.11.1, 1.14.16, 1.13.19 |
| Spring/Micrometergeneric | >=1.16.0 <1.16.6 || >=1.15.0 <1.15.11. || >=1.14.0 <1.14.15.1 || >=1.13.0 <1.13.19 | 1.16.6, 1.15.11., 1.14.15.1, 1.13.19 |
Published upstream
Jun 9, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 23, 2026
In Micrometer, it is possible for a user to provide specially crafted HTTP requests that may cause a denial-of-service (DoS) condition. Affected versions: micrometer-core 1.16.0 through 1.16.5; 1.15.0 through 1.15.11; 1.14.0 through 1.14.15; 1.13.0 through 1.13.18; 1.9.0 through 1.9.17. micrometer-jetty11 1.16.0 through 1.16.5; 1.15.0 through 1.15.11; 1.14.0 through 1.14.15; 1.13.0 through 1.13.18. micrometer-jetty12 1.16.0 through 1.16.5; 1.15.0 through 1.15.11; 1.14.0 through 1.14.15; 1.13.0 through 1.13.18.
Quoted source text, attributed separately from HOL analysis.