[renovate-bot]

This PR contains the following updates:

Package	Change	Age	Confidence
body-parser	1.19.0 → 1.20.6

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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 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)

v1.20.6

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• Security fix for GHSA-v422-hmwv-36x6
• 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

v1.20.5

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• refactor(json): simplify strict mode error string construction
• fix: extended urlencoded parsing of arrays with >100 elements (#​716)
• deps: qs@~6.15.1

v1.20.4

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

v1.20.3

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• deps: qs@​6.13.0
• add depth option to customize the depth level in the parser
• IMPORTANT: The default depth level for parsing URL-encoded data is now 32 (previously was Infinity)

v1.20.2

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• Fix strict json error message on Node.js 19+
• deps: content-type@~1.0.5
  • perf: skip value escaping when unnecessary
• deps: raw-body@​2.5.2

v1.20.1

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• deps: qs@​6.11.0
• perf: remove unnecessary object clone

v1.20.0

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• Fix error message for json parse whitespace in strict
• Fix internal error when inflated body exceeds limit
• Prevent loss of async hooks context
• Prevent hanging when request already read
• deps: depd@​2.0.0
  • Replace internal eval usage with Function constructor
  • Use instance methods on process to check for listeners
• deps: http-errors@​2.0.0
  • deps: depd@​2.0.0
  • deps: statuses@​2.0.1
• deps: on-finished@​2.4.1
• deps: qs@​6.10.3
• deps: raw-body@​2.5.1
  • deps: http-errors@​2.0.0

v1.19.2

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• deps: bytes@​3.1.2
• deps: qs@​6.9.7
  • Fix handling of __proto__ keys
• deps: raw-body@​2.4.3
  • deps: bytes@​3.1.2

v1.19.1

Compare Source

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• deps: bytes@​3.1.1
• deps: http-errors@​1.8.1
  • deps: inherits@​2.0.4
  • deps: toidentifier@​1.0.1
  • deps: setprototypeof@​1.2.0
• deps: qs@​6.9.6
• deps: raw-body@​2.4.2
  • deps: bytes@​3.1.1
  • deps: http-errors@​1.8.1
• deps: safe-buffer@​5.2.1
• deps: type-is@~1.6.18

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