GHSA-xw57-23p8-9wc5

Source

https://github.com/advisories/GHSA-xw57-23p8-9wc5

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-xw57-23p8-9wc5/GHSA-xw57-23p8-9wc5.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-xw57-23p8-9wc5

Published

2026-07-02T19:07:22Z

Modified

2026-09-10T03:51:12Z

Severity

6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

@asymmetric-effort/specifyjs: Localhost bypass incomplete (IPv6, 0.0.0.0, 127.x range)

Details

Finding

Location: core/src/shared/secure-fetch.ts:52-54

The localhost exception allowed localhost and 127.0.0.1 but did not cover 0.0.0.0, [::1] (IPv6 localhost), or the full 127.0.0.0/8 loopback range.

Status

Fixed in v0.2.136 — Localhost detection now covers localhost, 127.0.0.1, [::1], 0.0.0.0, and the full 127.x.x.x range.

Database specific

{
    "cwe_ids":  [
        "CWE-918"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-07-02T19:07:22Z",
    "nvd_published_at":  null,
    "severity":  "MODERATE"
}

References

Affected packages

npm / @asymmetric-effort/specifyjs

Package

Name: @asymmetric-effort/specifyjs; View open source insights on deps.dev
Purl: pkg:npm/%40asymmetric-effort/specifyjs

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

0.2.136

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/07/GHSA-xw57-23p8-9wc5/GHSA-xw57-23p8-9wc5.json"