KollectApps before 4.8.16c is affected by insecure Java deserialization, leading to…
Priority MEDIUM 48CWE-502Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-502.
Summary
KollectApps before 4.8.16c is affected by insecure Java deserialization, leading to Remote Code Execution via a ysoserial.payloads.CommonsCollections parameter.
Why it matters now
EPSS 0.02999 87th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:kollectapp:kollect:*:*:*:*:*:*:*:* | before 4.8.16c | Vulnerable | Kollectapp |
- cpe:2.3:a:kollectapp:kollect:*:*:*:*:*:*:*:* Versions before 4.8.16c Vulnerable ·Kollectapp
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-27335
- 2026-10-03 Alias added: GHSA-2xp2-6xw3-mw59
References
Sources
- CVE-2021-27335 · CVE Program
- CVE-2021-27335 · NVD
- FIRST EPSS
- GHSA-2xp2-6xw3-mw59 · 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