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  4. CVE 2017 20162 vercel ms indexjs parse redos
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Back to active CVEs
Medium · CVSS 4.3CVE-2017-20162

vercel ms index.js parse redosCVE-2017-20162

Answer in brief

CVE-2017-20162 records a Medium severity (CVSS 4.3) vulnerability in vercel ms index.js parse redos. The current sources do not mark it as known exploited. The current feed maps vercel/ms (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jan 5, 2023Updated Oct 15, 2026Source checked Oct 15, 2026First seen by HOL Oct 15, 2026Material review Oct 15, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 4.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 4.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps vercel/ms (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
vercel/msgeneric1.xNot reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for vercel/ms.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Jan 5, 2023

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 15, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 15, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencesecurity.netapp.com
  • Source referencevuldb.com
  • Source referencevuldb.com
Upstream source description

A vulnerability, which was classified as problematic, has been found in vercel ms up to 1.x. This issue affects the function parse of the file index.js. The manipulation of the argument str leads to inefficient regular expression complexity. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2.0.0 is able to address this issue. The patch is named caae2988ba2a37765d055c4eee63d383320ee662. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-217451.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • kin-openapi: Unauthenticated panic (DoS) in openapi3filter legacy router via non-canonical/unsupported HTTP method on a static pathSame generic ecosystem
  • kin-openapi spec loader panics on a self-referential additionalProperties $ref (nil-pointer DoS)Same generic ecosystem
  • kin-openapi openapi3filter: nil-pointer panic in ValidateResponse on a response header declared with contentSame generic ecosystem
  • kin-openapi deepObject query decoding repeatedly compiles an invariant regular expressionSame generic ecosystem
  • kin-openapi: ValidationHandler security-requirement bypass via encoded-path operation confusionSame generic ecosystem
  • kin-openapi: YAML NaN/Inf Values Bypass Built-in Guards and Panic via OAS 3.1 Validation PathSame generic ecosystem

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-1333
Source
CVE List V5
Source checked
Oct 15, 2026
References
6 linked sources
Open source record