@asymmetric-effort/specifyjs: Localhost bypass incomplete (IPv6, 0.0.0.0, 127.x range)
Affects @asymmetric-effort/specifyjsSource GCVE Database
CVSS 6.9 Medium : upgrade to 0.2.136 when convenient.
Data as of 3 Jul 2026, 22:49 UTC
- Patch
- Available – fixed in 0.2.136
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:NWhat to do
Upgrade @asymmetric-effort/specifyjs to 0.2.136.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| npm@asymmetric-effort/specifyjs | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade @asymmetric-effort/specifyjs to version 0.2.136 or later, where the localhost detection logic has been corrected to include 'localhost', '127.0.0.1', '[::1]', '0.0.0.0', and the entire 127.x.x.x range. No other mitigation is required as the fix addresses the vulnerability directly.
Description
## 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.
References
- github.com/asymmetric-effort/specifyjs/security/advisories/GHSA-xw57-23p8-9wc5 (opens in a new tab)
- github.com/asymmetric-effort/specifyjs/commit/25d1fb491d99479efdf501f5f75e0bb80c908f0a (opens in a new tab)
- github.com/asymmetric-effort/specifyjs/commit/293124c51bf797c0f5cdae32981110545850a893 (opens in a new tab)
- github.com/asymmetric-effort/specifyjs (opens in a new tab)