Vulnerability-Lookup

(CVE-2026-85008)

Vulnerability from cleanstart – Published: 2026-10-20 00:43 – Updated: 2026-10-19 12:56 – Source website

Summary

Details

CVE-2026-85008 affects multiple packages. undici's cache interceptor documents that only safe HTTP methods are cached, but its logic to skip caching is built by subtracting the configured methods from the set of safe methods, so an unsafe method such as POST, PUT, or DELETE is never placed in the skip list and instead falls through to th.... See references for individual vulnerability details.

Severity

5.3 (Medium)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References

URL

Type

	https://github.com/cleanstart-dev/cleanstart-secu…	ADVISORY
	https://osv.dev/vulnerability/CVE-2026-85008	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-85008	WEB

JSON

To clipboard

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      "package": {
        "ecosystem": "CleanStart",
        "name": "renovate",
        "purl": "pkg:apk/cleanstart/renovate"
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  "details": "CVE-2026-85008 affects multiple packages. undici\u0027s cache interceptor documents that only safe HTTP methods are cached, but its logic to skip caching is built by subtracting the configured methods from the set of safe methods, so an unsafe method such as POST, PUT, or DELETE is never placed in the skip list and instead falls through to th.... See references for individual vulnerability details.",
  "id": "CLEANSTART-2026-OB41556",
  "modified": "2026-10-19T12:56:40Z",
  "published": "2026-10-20T00:43:20.714207Z",
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CVE-2026-85008 (GCVE-0-2026-85008)

Vulnerability from cvelistv5 – Published: 2026-09-04 16:42 – Updated: 2026-09-04 19:28

Title

undici vulnerable to caching and replay of unsafe HTTP method responses

Summary

undici's cache interceptor documents that only safe HTTP methods are cached, but its logic to skip caching is built by subtracting the configured methods from the set of safe methods, so an unsafe method such as POST, PUT, or DELETE is never placed in the skip list and instead falls through to the full cache-read path. The response-storage gate also lacked a method check, so a response to an unsafe request that is heuristically cacheable or carries an explicit Cache-Control directive is stored and later replayed from cache. Because response headers from a remote origin are untrusted, an origin can answer once with a cacheable status and then have the client's own subsequent state-changing requests to that path served from the stale cache entry without ever reaching the origin, an integrity failure that occurs under the interceptor's default configuration. This affects undici versions from 7.0.0 up to 7.29.1 and from 8.0.0 up to 8.10.2. Users should upgrade to undici 7.29.1 or 8.10.2.

Severity

3.7 (Low)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-04 19:28 UTC

CWE

CWE-345 - Insufficient Verification of Data Authenticity

Assigner

openjs CNA under the redhat root

CNA scorecard C 65/100 over 119 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/nodejs/undici/security/advisor…
https://cna.openjsf.org/security-advisories.html

Impacted products

1 product

Vendor	Product	Version
undici	undici	Affected: 7.0.0 , < 7.29.1 (semver) Unaffected: 7.29.1 (semver) Affected: 8.0.0 , < 8.10.2 (semver) Unaffected: 8.10.2 (semver)

Credits

MegaManSec mcollina UlisesGascon

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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