CVE-2026-30916
Shescape has possible misidentification of shell due to link chains
Description
Rejected reason: ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. Reason: Further investigation determined that the software behavior described did not falls within the project's threat model. See https://github.com/github/advisory-database/pull/7206 for more information.
INFO
Published Date :
March 10, 2026, 5:40 p.m.
Last Modified :
March 20, 2026, 8:16 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | LOW | [email protected] |
Solution
- Update Shescape to version 2.1.9.
- Review shell configurations for potential bypass.
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CVE-2026-30916 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-30916 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Rejected by [email protected]
Mar. 20, 2026
Action Type Old Value New Value -
CVE Modified by [email protected]
Mar. 20, 2026
Action Type Old Value New Value Changed Description Shescape is a simple shell escape library for JavaScript. Prior to 2.1.9, an attacker may be able to bypass escaping for the shell being used. This can result, for example, in exposure of sensitive information. This impacts users of Shescape that configure their shell to point to a file on disk that is a link to a link. The precise result of being affected depends on the actual shell used and incorrect shell identified by Shescape. This vulnerability is fixed in 2.1.9. Rejected reason: ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. Reason: Further investigation determined that the software behavior described did not falls within the project's threat model. See https://github.com/github/advisory-database/pull/7206 for more information. Removed CVSS V4.0 GitHub, Inc.: AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Removed CWE GitHub, Inc.: CWE-200 Removed Reference GitHub, Inc.: https://github.com/ericcornelissen/shescape/pull/2388 Removed Reference GitHub, Inc.: https://github.com/ericcornelissen/shescape/security/advisories/GHSA-6f6w-6j58-rq76 Removed Reference GitHub, Inc.: https://www.npmjs.com/package/shescape/v/2.1.9 Removed Reference CISA-ADP: https://github.com/ericcornelissen/shescape/security/advisories/GHSA-6f6w-6j58-rq76 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Mar. 10, 2026
Action Type Old Value New Value Added Reference https://github.com/ericcornelissen/shescape/security/advisories/GHSA-6f6w-6j58-rq76 -
New CVE Received by [email protected]
Mar. 10, 2026
Action Type Old Value New Value Added Description Shescape is a simple shell escape library for JavaScript. Prior to 2.1.9, an attacker may be able to bypass escaping for the shell being used. This can result, for example, in exposure of sensitive information. This impacts users of Shescape that configure their shell to point to a file on disk that is a link to a link. The precise result of being affected depends on the actual shell used and incorrect shell identified by Shescape. This vulnerability is fixed in 2.1.9. Added CVSS V4.0 AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-200 Added Reference https://github.com/ericcornelissen/shescape/pull/2388 Added Reference https://github.com/ericcornelissen/shescape/security/advisories/GHSA-6f6w-6j58-rq76 Added Reference https://www.npmjs.com/package/shescape/v/2.1.9