GHSA-2944-57xv-2682
@asymmetric-effort/specifyjs: `data:` URI allowed without size restriction
Finding
Location: core/src/shared/secure-fetch.ts:33-35
data: URIs were allowed without any restriction. While data: URIs don't make network requests, they can be used for memory exhaustion via very large data URIs.
Status
Fixed in v0.2.136 — data: URIs are now limited to 1MB. URIs exceeding this limit throw an error.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
What each source reports
GitHub Advisories Score used
@asymmetric-effort/specifyjs: `data:` URI allowed without size restriction
Finding
Location: core/src/shared/secure-fetch.ts:33-35
data: URIs were allowed without any restriction. While data: URIs don't make network requests, they can be used for memory exhaustion via very large data URIs.
Status
Fixed in v0.2.136 — data: URIs are now limited to 1MB. URIs exceeding this limit throw an error.
- Record
GHSA-2944-57xv-2682- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N - Weakness
- CWE-918
- Updated
- 2026-11-02
OSV
@asymmetric-effort/specifyjs: `data:` URI allowed without size restriction
Finding
Location: core/src/shared/secure-fetch.ts:33-35
data: URIs were allowed without any restriction. While data: URIs don't make network requests, they can be used for memory exhaustion via very large data URIs.
Status
Fixed in v0.2.136 — data: URIs are now limited to 1MB. URIs exceeding this limit throw an error.
- Record
GHSA-2944-57xv-2682- CVSS 4.0
- 6.9 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N - Weakness
- CWE-918
- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
@asymmetric-effort/specifyjsnpm | before 0.2.136 | 0.2.136 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
GHSA-2944-57xv-2682 is a medium vulnerability (CVSS 6.9) in @asymmetric-effort/specifyjs, published July 2, 2026. No source lists public exploit code. Fixed in @asymmetric-effort/specifyjs 0.2.136.