Staging Environment: Content and features may be unstable or change without notice.
Search for packages
Package details: pkg:nuget/Moment.js@2.29.3
purl pkg:nuget/Moment.js@2.29.3
Next non-vulnerable version 2.29.4
Latest non-vulnerable version 2.29.4
Risk 4.0
Vulnerabilities affecting this package (1)
Vulnerability Summary Fixed by
VCID-ptd4-8f7f-hyg6
Aliases:
CVE-2022-31129
GHSA-wc69-rhjr-hc9g
Moment.js vulnerable to Inefficient Regular Expression Complexity ### Impact * using string-to-date parsing in moment (more specifically rfc2822 parsing, which is tried by default) has quadratic (N^2) complexity on specific inputs * noticeable slowdown is observed with inputs above 10k characters * users who pass user-provided strings without sanity length checks to moment constructor are vulnerable to (Re)DoS attacks ### Patches The problem is patched in 2.29.4, the patch can be applied to all affected versions with minimal tweaking. ### Workarounds In general, given the proliferation of ReDoS attacks, it makes sense to limit the length of the user input to something sane, like 200 characters or less. I haven't seen legitimate cases of date-time strings longer than that, so all moment users who do pass a user-originating string to constructor are encouraged to apply such a rudimentary filter, that would help with this but also most future ReDoS vulnerabilities. ### References There is an excellent writeup of the issue here: https://github.com/moment/moment/pull/6015#issuecomment-1152961973= ### Details The issue is rooted in the code that removes legacy comments (stuff inside parenthesis) from strings during rfc2822 parsing. `moment("(".repeat(500000))` will take a few minutes to process, which is unacceptable.
2.29.4
Affected by 0 other vulnerabilities.
Vulnerabilities fixed by this package (0)
Vulnerability Summary Aliases
This package is not known to fix vulnerabilities.

Date Actor Action Vulnerability Source VulnerableCode Version
2026-04-16T22:05:13.708511+00:00 GitLab Importer Affected by VCID-ptd4-8f7f-hyg6 https://gitlab.com/gitlab-org/advisories-community/-/blob/main/nuget/Moment.js/CVE-2022-31129.yml 38.4.0
2026-04-11T23:21:10.707365+00:00 GitLab Importer Affected by VCID-ptd4-8f7f-hyg6 https://gitlab.com/gitlab-org/advisories-community/-/blob/main/nuget/Moment.js/CVE-2022-31129.yml 38.3.0
2026-04-02T23:28:05.725248+00:00 GitLab Importer Affected by VCID-ptd4-8f7f-hyg6 https://gitlab.com/gitlab-org/advisories-community/-/blob/main/nuget/Moment.js/CVE-2022-31129.yml 38.1.0
2026-04-01T17:49:15.796448+00:00 GitLab Importer Affected by VCID-ptd4-8f7f-hyg6 https://gitlab.com/gitlab-org/advisories-community/-/blob/main/nuget/Moment.js/CVE-2022-31129.yml 38.0.0