CVE-2021-23397
CVE-2021-23397 is a medium-severity vulnerability in Merge Project Merge with a CVSS 3.x base score of 5.6. 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-1321.
Key facts
- Severity: Medium (CVSS 3.x base score 5.6)
- EPSS exploit prediction: 1% (48th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-1321
- Affected product: Merge Project Merge
- Published:
- Last modified:
Description
All versions of package @ianwalter/merge are vulnerable to Prototype Pollution via the main (merge) function. Maintainer suggests using @generates/merger instead.
Frequently asked questions
- What is CVE-2021-23397?
- All versions of package @ianwalter/merge are vulnerable to Prototype Pollution via the main (merge) function. Maintainer suggests using @generates/merger instead.
- How severe is CVE-2021-23397?
- CVE-2021-23397 has a CVSS 3.x base score of 5.6, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
- Is CVE-2021-23397 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-23397?
- CVE-2021-23397 affects Merge Project Merge. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-23397?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-23397 published?
- CVE-2021-23397 was published on 2022-07-25 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:merge_project:merge:*:*:*:*:*:node.js:*:*
More vulnerabilities in Merge Project Merge
- CVE-2021-3645 — Critical (CVSS 9.8): merge is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
- CVE-2018-16469 — High (CVSS 7.5): The merge.recursive function in the merge package <1.2.1 can be tricked into adding or modifying properties of the…
- CVE-2020-28499 — High (CVSS 7.3): All versions of package merge are vulnerable to Prototype Pollution via _recursiveMerge .
All CVEs affecting Merge Project Merge →
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