xregexp — Greenflagged

Extended regular expressions

Supply chain provenance

Status for the latest visible version.

No SLSA provenance npm registry signatures gitHead linked

Without SLSA provenance there is no cryptographic link between this tarball and the public source — the axios compromise (March 2026) relied on exactly this gap.

Maintainers

slevithanjosephfrazier

Keywords

regexregexpregular expressionunicode

Accepted risks

Findings the reviewer chose to accept rather than block on.

Source	Rule	Reason	Accepted by	When
source-diff	obfuscated-file:lib/addons/unicode-categories.js	AI (source-diff): Long lines are Unicode code point range data (\uXXXX sequences), not obfuscation. This is expected for Unicode data files in XRegExp's Unicode addon modules.	ai	2026/04/24
source-diff	obfuscated-file:lib/addons/unicode-properties.js	AI (source-diff): Long lines are Unicode code point range data (\uXXXX sequences), not obfuscation. This is expected for Unicode data files in XRegExp's Unicode addon modules.	ai	2026/04/24
source-diff	obfuscated-file:tools/output/properties.js	AI (source-diff): Same as categories.js — Unicode property range data generated by build tooling. Legitimate build artifact for xregexp's Unicode support.	ai	2026/04/24
source-diff	obfuscated-file:tools/output/categories.js	AI (source-diff): Long lines are dense Unicode codepoint range strings — build output from unicode data processing scripts. Expected artifact for a Unicode regex library, not obfuscation.	ai	2026/04/24
semgrep	semgrep:dynamic-require	AI (semgrep): Dynamic require in build tooling scripts to load versioned unicode data packages (devDependencies). Not a runtime risk; standard pattern for build-time data generation.	ai	2026/04/24
provenance	publisher-changed	AI (provenance): slevithan is the original author of XRegExp; the transition from josephfrazier back to slevithan is a legitimate handoff to the package's creator, not a compromise.	ai	2026/04/24
source-diff	net-exec-file:lib/xregexp-all.js	AI (source-diff): The file uses standard CommonJS require() and a UMD wrapper — no actual network calls or malicious dynamic execution. False positive on a legitimate browserified bundle.	ai	2026/04/24
source-diff	obfuscated-file:lib/xregexp-all.js	AI (source-diff): xregexp-all.js is a documented browserify build artifact (see build script in package.json). Long lines are from minified/bundled output, not obfuscation. Stable false positive for this package.	ai	2026/04/24

Versions (showing 25 of 25)

Version	Deps	Published
5.1.2	1 / 15	2025-02-21
5.1.1	1 / 16	2022-06-05
5.1.0	1 / 17	2021-08-04
5.0.2	1 / 17	2021-03-31
5.0.1	1 / 17	2021-02-09
5.0.0	1 / 17	2021-02-08
4.4.1	1 / 15	2020-12-08
4.4.0	1 / 15	2020-10-29
4.3.0	1 / 14	2020-02-11
4.2.4	1 / 14	2019-01-08
4.2.3	1 / 14	2019-01-07
4.2.2	1 / 14	2019-01-06
4.2.0	0 / 13	2018-06-10
4.1.1	0 / 12	2018-02-21
4.1.0	0 / 12	2018-02-20
4.0.0	0 / 9	2018-01-02
3.2.0	0 / 2	2017-04-16
3.1.1	0 / 1	2016-05-14
3.1.0	0 / 1	2016-02-23
3.0.0	0 / 0	2015-09-22
2.0.0	0 / 1	2012-05-25
1.5.3	0 / 0	2012-03-09
1.5.2	0 / 0	2012-03-06
1.5.1	0 / 0	2012-02-23
1.5.0	0 / 0	2011-06-30

v5.1.2

1 finding

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v5.1.1

1 finding

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v5.1.0

1 finding

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v5.0.2

1 finding

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v5.0.1

2 findings

HIGH Publisher changed: josephfrazier → slevithan (on 2021-02-09) provenance

This version was published by a different npm account than previous versions on 2021-02-09. This could indicate a legitimate maintainer transition or an account compromise.

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v5.0.0

3 findings

HIGH New obfuscated file: lib/xregexp-all.js source-diff

Newly added source file contains lines over 3000 chars, suggesting minified or obfuscated code. New obfuscated files are a strong attack indicator.

HIGH New file with network + code execution: lib/xregexp-all.js source-diff

Newly added file contains both network calls and dynamic code execution. This is a hallmark of dropper/loader malware.

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v4.4.1

2 findings

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

INFO Publisher changed: slevithan → josephfrazier (on 2020-12-08) provenance

[Accepted risk] This version was published by a different npm account than previous versions on 2020-12-08. This could indicate a legitimate maintainer transition or an account compromise.

v4.4.0

2 findings

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

INFO Publisher changed: josephfrazier → slevithan (on 2020-10-29) provenance

[Accepted risk] This version was published by a different npm account than previous versions on 2020-10-29. This could indicate a legitimate maintainer transition or an account compromise.

v4.3.0

2 findings

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

INFO Publisher changed: slevithan → josephfrazier (on 2020-02-11) provenance

[Accepted risk] This version was published by a different npm account than previous versions on 2020-02-11. This could indicate a legitimate maintainer transition or an account compromise.

v4.2.4

1 finding

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v4.2.3

1 finding

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v4.2.2

1 finding

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v4.2.0

3 findings

HIGH New obfuscated file: tools/output/categories.js source-diff

Newly added source file contains lines over 3000 chars, suggesting minified or obfuscated code. New obfuscated files are a strong attack indicator.

HIGH New obfuscated file: tools/output/properties.js source-diff

Newly added source file contains lines over 3000 chars, suggesting minified or obfuscated code. New obfuscated files are a strong attack indicator.

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v4.1.1

3 findings

HIGH New obfuscated file: tools/output/categories.js source-diff

Newly added source file contains lines over 3000 chars, suggesting minified or obfuscated code. New obfuscated files are a strong attack indicator.

HIGH New obfuscated file: tools/output/properties.js source-diff

Newly added source file contains lines over 3000 chars, suggesting minified or obfuscated code. New obfuscated files are a strong attack indicator.

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v4.1.0

1 finding

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v4.0.0

3 findings

HIGH New obfuscated file: lib/addons/unicode-categories.js source-diff

Newly added source file contains lines over 3000 chars, suggesting minified or obfuscated code. New obfuscated files are a strong attack indicator.

HIGH New obfuscated file: lib/addons/unicode-properties.js source-diff

Newly added source file contains lines over 3000 chars, suggesting minified or obfuscated code. New obfuscated files are a strong attack indicator.

LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.