GHSA-qccm-wmcq-pwr6 · Severity: low · Ecosystem: go — Tailscale daemon is vulnerable to information disclosure via CSRF
A vulnerability identified in the Tailscale client allows a malicious website to access the peer API, which can then be used to access Tailscale environment variables. In the Tailscale client, the peer API was vulnerable to DNS rebinding. This allowed an attacker-controlled website visited by the node to rebind DNS for the peer API to an attacker-controlled DNS server, and then making peer API requests in the client, including accessing the node’s Tailscale environment variables. An attacker with access to the peer API on a node could use that access to read the node’s environment variables, including any credentials or secrets stored in environment variables. This may include Tailscale authentication keys, which could then be used to add new nodes to the user’s tailnet. The peer API access could also be used to learn of other nodes in the tailnet or send files via Taildrop. All Tailscale clients prior to version v1.32.3 are affected. Upgrade to v1.32.3 or later to remediate the issue.
Conclusion & alert: CVE-2022-41925 is rated High Exploit Risk (64.8/100): CVSS High severity, with low exploitation likelihood (EPSS 0.53%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.14% | 0.53% | +0.40% |
| 2 | 2025-12-19 | 0.21% | 0.14% | -0.08% |
| 3 | 2025-12-17 | — | 0.21% | — |
Full EPSS history (16 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.8 | 3.1 | HIGH |
|
2.1 | 6.0 | [email protected] |
| 3.8 | 3.0 | LOW |
|
2.1 | 1.4 | [email protected] |
GHSA-qccm-wmcq-pwr6 · Severity: low · Ecosystem: go — Tailscale daemon is vulnerable to information disclosure via CSRF
| URL | Tags |
|---|---|
| https://emily.id.au/tailscale | Exploit Technical Description Third Party Advisory |
| https://github.com/tailscale/tailscale/security/advisories/GHSA-qccm-wmcq-pwr6 | Third Party Advisory |
| https://tailscale.com/security-bulletins/#ts-2022-005 | Vendor Advisory |