In Eclipse Californium version 2.0.0 to 2.7.2 and 3.0.0-3.5.0 a DTLS resumption handshake…
Priority LOW 34CWE-408Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
In Eclipse Californium version 2.0.0 to 2.7.2 and 3.0.0-3.5.0 a DTLS resumption handshake falls back to a DTLS full handshake on a parameter mismatch without using a HelloVerifyRequest. Especially, if used with certificate based cipher suites, that results in message amplification (DDoS other peers) and high CPU load (DoS own peer). The misbehavior occurs only with DTLS_VERIFY_PEERS_ON_RESUMPTION_THRESHOLD values larger than 0.
Why it matters now
EPSS 0.00606 49th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed org.eclipse.californium:californium-core (Maven): 2.7.3, 3.6.0
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 |
|---|---|---|---|---|---|
| Eclipse Foundation | Eclipse Californium | 2.0.0 and later; up to 2.7.2; 3.0.0 and later; up to 3.5.0 | — | No fix listed | CNA |
| — | org.eclipse.californium:californium-core (Maven) | 2.0.0 to before 2.7.3 | 2.7.3 | Patch available | GHSA-qq3j-44gw-cf6r |
| — | org.eclipse.californium:californium-core (Maven) | 3.0.0 to before 3.6.0 | 3.6.0 | Patch available | GHSA-qq3j-44gw-cf6r |
- Eclipse Californium VendorEclipse Foundation Affected 2.0.0 and later; up to 2.7.2; 3.0.0 and later; up to 3.5.0 Fixed in — No fix listed CNA
- org.eclipse.californium:californium-core (Maven) Vendor— Affected 2.0.0 to before 2.7.3 Fixed in 2.7.3 Patch available GHSA-qq3j-44gw-cf6r
- org.eclipse.californium:californium-core (Maven) Vendor— Affected 3.0.0 to before 3.6.0 Fixed in 3.6.0 Patch available GHSA-qq3j-44gw-cf6r
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:eclipse:californium:*:*:*:*:*:*:*:* | 2.0.0 – 2.7.2; 3.0.0 – 3.5.0 | Vulnerable | Eclipse Foundation |
- cpe:2.3:a:eclipse:californium:*:*:*:*:*:*:*:* Versions 2.0.0 – 2.7.2; 3.0.0 – 3.5.0 Vulnerable ·Eclipse Foundation
Remediation
- Fix · GHSA-qq3j-44gw-cf6r org.eclipse.californium:californium-core (Maven) Fixed in 2.7.3 Advisory →
- Fix · GHSA-qq3j-44gw-cf6r org.eclipse.californium:californium-core (Maven) Fixed in 3.6.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2022-2576
- 2026-10-03 Alias added: GHSA-qq3j-44gw-cf6r
References
Exploit 1
Other 4
More Eclipse Foundation Californium vulnerabilities
- TI-2022-18742 Californium Failing DTLS handshakes causes Data Loss due to throttling blocking processing of records CVSS 3.1HIGH 8.2
- TI-2020-16548 In Eclipse Californium version 2.3.0 to 2.6.0, the certificate based (x509 and RPK) DTLS… CVSS 3.1HIGH 7.5
- TI-2021-13467 Improper signature verification in Eclipse Californium CVSS 3.1HIGH 7.5
Sources
- CVE-2022-2576 · CVE Program
- CVE-2022-2576 · NVD
- FIRST EPSS
- GHSA-qq3j-44gw-cf6r · GitHub Advisory Database · CC BY 4.0
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