Answer in brief
CVE-2023-34620 records a High severity (CVSS 7.5) vulnerability in hjson stack exhaustion vulnerability. The current sources do not mark it as known exploited. The current feed maps github.com/hjson/hjson-go/v4 (go), org.hjson:hjson (maven), laktak/hjson (packagist). 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 github.com/hjson/hjson-go/v4 (go), org.hjson:hjson (maven), laktak/hjson (packagist). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| github.com/hjson/hjson-go/v4go | >=0 <4.5.0 | 4.5.0 |
| org.hjson:hjsonmaven | >=0 <3.0.1 | 3.0.1 |
| laktak/hjsonpackagist | >=0 <2.3.0 | 2.3.0 |
Published upstream
Jun 14, 2023
Evidence: source:osv:source_dates:source-dates:recordSource modified
Sep 10, 2026
Evidence: source:osv:source_dates:source-dates:recordFirst seen by HOL
Sep 10, 2026
An issue was discovered hjson through 3.0.0 allows attackers to cause a denial of service or other unspecified impacts via crafted objects that deeply nested structures.
Quoted source text, attributed separately from HOL analysis.