ClassGraph before 4.8.112 was not resistant to XML eXternal Entity (XXE) attacks.
Priority MEDIUM 40CWE-611Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-611 and the CVSS impact.
Summary
ClassGraph before 4.8.112 was not resistant to XML eXternal Entity (XXE) attacks.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00561 46th percentileScored 2026-11-07
Fix Fixed io.github.classgraph:classgraph (Maven): 4.8.112
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | io.github.classgraph:classgraph (Maven) | before 4.8.112 | 4.8.112 | Patch available | GHSA-v2xm-76pq-phcf |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- io.github.classgraph:classgraph (Maven) Vendor— Affected before 4.8.112 Fixed in 4.8.112 Patch available GHSA-v2xm-76pq-phcf
CPE names CISA-ADP · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:classgraph:classgraph:*:*:*:*:*:*:*:* | — | — | — |
- cpe:2.3:a:classgraph:classgraph:*:*:*:*:*:*:*:* Versions — — ·—
Remediation
- Fix · GHSA-v2xm-76pq-phcf io.github.classgraph:classgraph (Maven) Fixed in 4.8.112 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-47621
- 2026-10-03 Alias added: GHSA-v2xm-76pq-phcf
References
Other 5
- https://github.com/classgraph/classgraph/releases/tag/classgraph-4.8.112
- https://github.com/classgraph/classgraph/commit/681362ad6b0b9d9abaffb2e07099ce54d7a41fa3
- https://github.com/classgraph/classgraph/pull/539
- https://docs.r3.com/en/platform/corda/4.8/enterprise/release-notes-enterprise.html
- https://github.com/classgraph/classgraph
Sources
- CVE-2021-47621 · CVE Program
- CVE-2021-47621 · NVD
- FIRST EPSS
- GHSA-v2xm-76pq-phcf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences