📦 Update dependency body-parser to v2 [SECURITY]

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
body-parser	1.20.3 → 2.3.0

See all other Renovate PRs on the Dependency Dashboard

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body-parser vulnerable to denial of service when url encoding is enabled

CVE-2024-45590 / GHSA-qwcr-r2fm-qrc7

More information

Details

Impact

body-parser <1.20.3 is vulnerable to denial of service when url encoding is enabled. A malicious actor using a specially crafted payload could flood the server with a large number of requests, resulting in denial of service.

Patches

this issue is patched in 1.20.3

References

Severity

• CVSS Score: 8.7 / 10 (High)
• Vector String: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

References

• https://github.com/expressjs/body-parser/security/advisories/GHSA-qwcr-r2fm-qrc7
• https://github.com/expressjs/body-parser/commit/b2695c4450f06ba3b0ccf48d872a229bb41c9bce
• https://nvd.nist.gov/vuln/detail/CVE-2024-45590
• https://github.com/advisories/GHSA-qwcr-r2fm-qrc7

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

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body-parser is vulnerable to denial of service when url encoding is used

CVE-2025-13466 / GHSA-wqch-xfxh-vrr4

More information

Details

Impact

body-parser 2.2.0 is vulnerable to denial of service due to inefficient handling of URL-encoded bodies with very large numbers of parameters. An attacker can send payloads containing thousands of parameters within the default 100KB request size limit, causing elevated CPU and memory usage. This can lead to service slowdown or partial outages under sustained malicious traffic.

Patches

This issue is addressed in version 2.2.1.

Severity

• CVSS Score: 5.5 / 10 (Medium)
• Vector String: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/E:P

References

• https://github.com/expressjs/body-parser/security/advisories/GHSA-wqch-xfxh-vrr4
• https://nvd.nist.gov/vuln/detail/CVE-2025-13466
• https://github.com/expressjs/body-parser/commit/b204886a6744b0b6d297cd0e849d75de836f3b63
• https://github.com/expressjs/body-parser/releases/tag/v2.2.1
• https://github.com/advisories/GHSA-wqch-xfxh-vrr4

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

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body-parser vulnerable to denial of service when invalid limit value silently disables size enforcement

CVE-2026-12590 / GHSA-v422-hmwv-36x6

More information

Details

Impact

When body-parser is configured with an invalid limit option value, such as an unparseable string or NaN, bytes.parse() returns null and the request body size check is silently skipped. Applications that rely on limit as their primary safeguard against oversized request bodies will accept arbitrarily large payloads, leading to excessive memory and CPU usage and denial of service.

This issue affects applications that pass a programmatically computed or user-configurable value to the limit option without validating it first.

Patches

This issue is fixed in body-parser@2.3.0 and body-parser@1.20.6 via #​698. After the fix, invalid limit values throw a clear error at parser construction time instead of silently disabling enforcement. null and undefined continue to fall back to the default limit (100kb).

Workarounds

Validate limit before passing it to body-parser. For example, parse the value with bytes.parse() at startup and reject any configuration where it returns null or a non-finite number.

References

• #​698: fix PR
• bytes.js: limit parser

Severity

• CVSS Score: 3.7 / 10 (Low)
• Vector String: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

References

• https://github.com/expressjs/body-parser/security/advisories/GHSA-v422-hmwv-36x6
• https://nvd.nist.gov/vuln/detail/CVE-2026-12590
• https://github.com/expressjs/body-parser/pull/698
• https://github.com/expressjs/body-parser/pull/741
• https://github.com/expressjs/body-parser/commit/2322e111cc321413ec2b7b76d01be533d3de9d7d
• https://github.com/expressjs/body-parser/commit/3492672eee593d5c158f239b6e9115498a5dbeac
• https://cna.openjsf.org/security-advisories.html
• https://github.com/expressjs/body-parser/releases/tag/1.20.6
• https://github.com/expressjs/body-parser/releases/tag/v2.3.0
• https://github.com/advisories/GHSA-v422-hmwv-36x6

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

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Release Notes

expressjs/body-parser (body-parser)

v2.3.0

Compare Source

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• fix: use static exports instead of lazy getters to improve ESM compatibility
• feat: add subpath exports for individual parsers
• fix: improve limit option validation (#​698)
  • Invalid limit values (e.g. unparseable strings or NaN) now throw instead of being silently ignored, which previously disabled size limit enforcement
  • null and undefined fall back to the default 100kb limit
• deps:
  • content-type@^2.0.0
  • http-errors@^2.0.1
  • iconv-lite^0.7.2
  • qs@^6.15.2
  • raw-body@^3.0.2
  • type-is@^2.1.0

v2.2.2

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• deps: qs@^6.14.1
• refactor(json): simplify strict mode error string construction

v2.2.1

Compare Source

=========================

• Security fix for GHSA-wqch-xfxh-vrr4
• deps:
  • type-is@^2.0.1
  • iconv-lite@^0.7.0
    • Handle split surrogate pairs when encoding UTF-8
    • Avoid false positives in encodingExists by using prototype-less objects
  • raw-body@^3.0.1
  • debug@^4.4.3

v2.2.0

Compare Source

=========================

• refactor: normalize common options for all parsers
• deps:
  • iconv-lite@^0.6.3

v2.1.0

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=========================

• deps:
  • type-is@^2.0.0
  • debug@^4.4.0
  • Removed destroy
• refactor: prefix built-in node module imports
• use the node require cache instead of custom caching

v2.0.2

Compare Source

=========================

• remove unpipe package and use native unpipe() method

v2.0.1

Compare Source

=========================

• Restore expected behavior extended to false

v2.0.0

Compare Source

=========================

Breaking Changes

• Node.js 18 is the minimum supported version
• req.body is no longer always initialized to {}
  • it is left undefined unless a body is parsed
• Remove deprecated bodyParser() combination middleware
• urlencoded parser now defaults extended to false as released, this is not the case, fixed in 2.0.1
• urlencoded simple parser now uses qs module instead of querystring module

Features

• Add brotli support #​406
• urlencoded: Add option to customize the depth with a default value of 32
• urlencoded: Support iso-8859-1, utf8 sentinel, and numeric entities
• Use on-finished to determine when body read

Dependencies

• deps: raw-body@^3.0.0
• deps: qs@​6.12.3
• deps: debug@​3.1.0
• deps: iconv-lite@​0.5.2

v1.20.6

Compare Source

What's Changed

• fix: improve limit option validation by @​Phillip9587 in #​741

Full Changelog: expressjs/body-parser@1.20.5...1.20.6

v1.20.5

Compare Source

What's Changed

The reason for this release is a fix to the extended urlencoded parser returning objects instead of arrays for large array inputs (> 100) on qs@​6.14.2+. (#​716)

• refactor(json): simplify strict mode error string construction by @​jonchurch in #​692
• fix: correct off-by-one error in parameterCount by @​abhu85 in #​716
• deps(qs): bump qs to 6.15.1 by @​jonchurch in #​722
• Release: 1.20.5 by @​jonchurch in #​721

New Contributors

• @​abhu85 made their first contribution in #​716

Special thanks to triager @​krzysdz for keeping this on our radar and effectively triaging the specific issue!

Full Changelog: expressjs/body-parser@1.20.4...1.20.5

v1.20.4

Compare Source

===================

• deps: qs@~6.14.0
• deps: use tilde notation for dependencies
• deps: http-errors@~2.0.1
• deps: raw-body@~2.5.3

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