OpenConnect before 2.26 places the webvpn cookie value in the debugging output, which…
Priority LOW 27CWE-200Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Partial · None · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-200.
Summary
OpenConnect before 2.26 places the webvpn cookie value in the debugging output, which might allow remote attackers to obtain sensitive information by reading this output, as demonstrated by output posted to the public openconnect-devel mailing list.
Why it matters now
EPSS 0.02255 83rd percentileScored 2026-11-07
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 · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:infradead:openconnect:*:*:*:*:*:*:*:* | up to 2.25 | Vulnerable | Infradead |
| cpe:2.3:a:infradead:openconnect:1.00:*:*:*:*:*:*:* | 1.00 | Vulnerable | Infradead |
| cpe:2.3:a:infradead:openconnect:1.10:*:*:*:*:*:*:* | 1.10 | Vulnerable | Infradead |
| cpe:2.3:a:infradead:openconnect:1.20:*:*:*:*:*:*:* | 1.20 | Vulnerable | Infradead |
| cpe:2.3:a:infradead:openconnect:1.30:*:*:*:*:*:*:* | 1.30 | Vulnerable | Infradead |
| cpe:2.3:a:infradead:openconnect:2.22:*:*:*:*:*:*:* | 2.22 | Vulnerable | Infradead |
- cpe:2.3:a:infradead:openconnect:*:*:*:*:*:*:*:* Versions up to 2.25 Vulnerable ·Infradead
- cpe:2.3:a:infradead:openconnect:1.00:*:*:*:*:*:*:* Versions 1.00 Vulnerable ·Infradead
- cpe:2.3:a:infradead:openconnect:1.10:*:*:*:*:*:*:* Versions 1.10 Vulnerable ·Infradead
- cpe:2.3:a:infradead:openconnect:1.20:*:*:*:*:*:*:* Versions 1.20 Vulnerable ·Infradead
- cpe:2.3:a:infradead:openconnect:1.30:*:*:*:*:*:*:* Versions 1.30 Vulnerable ·Infradead
- cpe:2.3:a:infradead:openconnect:2.22:*:*:*:*:*:*:* Versions 2.22 Vulnerable ·Infradead
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2010-3902
- 2026-10-03 Alias added: GHSA-mvq9-gwc4-9r68
References
More Infradead Openconnect vulnerabilities
- TI-2020-10191 OpenConnect 8.09 has a buffer overflow, causing a denial of service (application crash)… CVSS 3.1CRITICAL 9.8
- TI-2019-12221 process_http_response in OpenConnect before 8.05 has a Buffer Overflow when a malicious… CVSS 3.1CRITICAL 9.8
- TI-2013-05832 OpenConnect VPN client with GnuTLS before 5.02 contains a heap overflow if MTU is increased on reconnection. CVSS 3.1CRITICAL 9.8
- TI-2012-02835 Heap-based buffer overflow in OpenConnect 3.18 allows remote servers to cause a denial of… CVSS 2.0HIGH 7.8
- TI-2020-09740 OpenConnect through 8.08 mishandles negative return values from X509_check_ function… CVSS 3.1MEDIUM 5.9
- TI-2010-03706 OpenConnect before 2.25 does not properly validate X.509 certificates, which allows… CVSS 2.0MEDIUM 6.4
Sources
- CVE-2010-3902 · CVE Program
- CVE-2010-3902 · NVD
- FIRST EPSS
- GHSA-mvq9-gwc4-9r68 · GitHub Advisory Database · CC BY 4.0
- CVE-2010-3902 · Red Hat security data · CC BY 4.0
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