curl & libcurl — Security Intelligence & Vulnerability Profile

1. Software Identity & Security Posture

Parameter	Technical Specification
Official Name	curl & libcurl
Vendor / Project	`curl`
Canonical ID	`curl:curl`
Versioning Scheme	`semver`
CPE Identifiers	`cpe:2.3:a:haxx:curl::::::::` `cpe:2.3:a:haxx:libcurl::::::::`
Overall Posture	HIGH
Recommended Safe Release	8.21.0

Documented CVEs

2 vulnerabilities cataloged in the Hermes intelligence repository.

CISA KEV Entries

0 flaws with confirmed active in-the-wild exploitation.

Weaponized Exploits

2 vulnerabilities with publicly available PoCs or weaponized exploit tooling.

Remediation Target

Recommended upgrade to 8.21.0 to neutralize known flaws.

2. 30-Day Risk Trajectory & Trend Evolution

Progression of Hermes Threat Score (HTS) posture and maximum EPSS probability over the last 30 days:

Current HTS Score

0 / 100

= Stable over 30d

Max EPSS (Exploitation)

0.4 %

▲ +0.4 % over 30d

CISA KEV Activity

No active KEV

HTS Trend Curve (D-30 → Today)2026-08-12 → 2026-09-10

3. Vulnerability History & Version Applicability Matrix

CVE	CVSS Score	EPSS Probability	CISA KEV	Affected Versions	Fixed In	Hermes Analysis
CVE-2026-8932	7.5 (HIGH)	0.4%	No	< v8.21.0	`8.21.0`	Analysis →
CVE-2026-6276	6.5 (MEDIUM)	0.3%	No	< v8.20.0	`8.20.0`	Analysis →

4. Evaluate Running Versions in Interactive Workbench

Are you operating curl & libcurl in your infrastructure? Inspect your running build to evaluate applicability, confidence score, and security deltas:

Launch Software Intelligence Workbench for curl & libcurl Run deterministic in-browser evaluation, calculate HTS threat reduction, and plan your upgrade path.