Vulnerability · Published Jan 2, 2026 · Assigned by mitre
CVE-2025-45286
Medium 6.1
In plain English
A medium-severity security flaw in the github.com/mccutchen/go-httpbin package (Go). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.1Medium
Exploit odds (30 days)0.3%top 81.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A cross-site scripting (XSS) vulnerability in mccutchen httpbin v2.17.1 allows attackers to execute arbitrary web scripts or HTML via a crafted payload.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/mccutchen/go-httpbin | no fix listed | GO-2025-3554 |
| Go | github.com/mccutchen/go-httpbin | 2.18.0 | GHSA-528q-4pgm-wvg2 |
| Go | github.com/mccutchen/go-httpbin/v2 | 2.18.0 | GO-2025-3554 |
| Go | github.com/mccutchen/go-httpbin/v2 | 2.18.0 | GHSA-528q-4pgm-wvg2 |
Affected products (as reported)
Weakness: CWE-80 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N