How severe is CVE-2022-37259?

CVE-2022-37259 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-37259 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-37259?

CVE-2022-37259 affects Stealjs Steal. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-37259?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-37259 published?

CVE-2022-37259 was published on 2022-09-20 and last updated on 2026-06-17.

CVE-2022-37259

CVE-2022-37259 is a high-severity vulnerability in Stealjs Steal with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1333.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1333
Affected product: Stealjs Steal
Published: 2022-09-20
Last modified: 2026-06-17

Description

A Regular Expression Denial of Service (ReDoS) flaw was found in stealjs steal 2.2.4 via the string variable in babel.js.

Frequently asked questions

What is CVE-2022-37259?: A Regular Expression Denial of Service (ReDoS) flaw was found in stealjs steal 2.2.4 via the string variable in babel.js.
How severe is CVE-2022-37259?: CVE-2022-37259 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-37259 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-37259?: CVE-2022-37259 affects Stealjs Steal. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-37259?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-37259 published?: CVE-2022-37259 was published on 2022-09-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:stealjs:steal:2.2.4:*:*:*:*:node.js:*:*

More vulnerabilities in Stealjs Steal

CVE-2022-37265 — Critical (CVSS 9.8): Prototype pollution vulnerability in stealjs steal 2.2.4 via the alias variable in babel.js.
CVE-2022-37258 — Critical (CVSS 9.8): Prototype pollution vulnerability in function convertLater in npm-convert.js in stealjs steal 2.2.4 via the packageName…
CVE-2022-37264 — Critical (CVSS 9.8): Prototype pollution vulnerability in stealjs steal 2.2.4 via the optionName variable in main.js.
CVE-2022-37266 — Critical (CVSS 9.8): Prototype pollution vulnerability in function extend in babel.js in stealjs steal 2.2.4 via the key variable in…
CVE-2022-37257 — Critical (CVSS 9.8): Prototype pollution vulnerability in function convertLater in npm-convert.js in stealjs steal 2.2.4 via the…
CVE-2022-37260 — High (CVSS 7.5): A Regular Expression Denial of Service (ReDoS) flaw was found in stealjs steal 2.2.4 via the input variable in main.js.

All CVEs affecting Stealjs Steal →

Other CWE-1333 vulnerabilities

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CVE-2023-29486 — Critical (CVSS 9.8): An issue was discovered in Heimdal Thor agent versions 3.4.2 and before 3.7.0 on Windows, allows attackers to bypass…
CVE-2026-25547 — Critical (CVSS 9.2): @isaacs/brace-expansion is a hybrid CJS/ESM TypeScript fork of brace-expansion. Prior to version 5.0.1,…
CVE-2023-29487 — Critical (CVSS 9.1): An issue was discovered in Heimdal Thor agent versions 3.4.2 and before on Windows and 2.6.9 and before on macOS,…
CVE-2026-47138 — High (CVSS 8.7): Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to…
CVE-2025-6998 — High (CVSS 8.7): ReDoS in strip_whitespaces() function in cps/string_helper.py in Calibre Web and Autocaliweb allows unauthenticated…

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