CVE-2026-85152

HIGHPre-NVD 7.47.4—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 93% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
7.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.4Exploit: None knownExposed: 0

A fix is available — apply it.

undici 8.10.0 omits the destination origin from the cache and request-deduplication keys when the cache or deduplicate interceptor is composed directly onto a Client or Pool. Because the internal cache key falls back to an empty origin string, a cacheable or in-flight response from one upstream origin is returned for a request to a different, trusted origin whenever the method, path, and relevant headers match, which permits cross-origin information disclosure and persistent cache poisoning. The reporter demonstrated a full authentication bypass in which a JWT signed with an attacker-controlled key was accepted as belonging to a trusted issuer, and the trusted origin was never contacted. This is a regression introduced in 8.10.0 and affects undici versions from 8.10.0 up to 8.10.2. Applications using an Agent, which carries the origin in its dispatch options, are not affected. Users should upgrade to undici 8.10.2.

CVSS v3
7.4
EG Score
7.4(medium)
EG Risk
33(Track)
EG Risk 33/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity74% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
7%
KEV
Not listed

Published

September 4, 2026

Last Modified

September 8, 2026

Advisory Details (2)

Auto-updated Sep 4, 2026
Patch available. Sources: github.
generic

Security Advisories | OpenJS Foundation CVE Numbering Authority

https://cna.openjsf.org/security-advisories.html
github Patch Available

undici vulnerable to cross-origin cache poisoning via missing origin isolation in interceptors · Advisory · nodejs/undici · GitHub

https://github.com/nodejs/undici/security/advisories/GHSA-vp8m-p9jh-q5pm

Vendor Advisories for CVE-2026-85152(3)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatgrafana12-4-main-12.4.9-0.6.hum12026-09-04redhat
redhatnodejs26-main-26.7.0-1.5.2.hum12026-08-12redhat
redhatnodejs24-main-24.18.1-0.2.2.hum12026-08-12redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
node-undici5.15.0+dfsg1+~cs20.10.9.3-1 ... 8.9.0+dfsg+~cs3.2.0-1 (39 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
node-undici7.15.0+dfsg+~cs3.2.0-1 ... 8.9.0+dfsg+~cs3.2.0-1 (15 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
node-undici7.15.0+dfsg+~cs3.2.0-1 ... 8.9.0+dfsg+~cs3.2.0-1 (15 versions)——

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 26× in last 7d / 31× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-11 16:08 UTCEG score recompute
  2. 2026-09-11 16:08 UTCVendor advisory
  3. 2026-09-11 14:53 UTCEPSS rescore
  4. 2026-09-11 14:53 UTCEPSS rescore
  5. 2026-09-11 04:41 UTCVendor advisory
  6. 2026-09-10 17:22 UTCEG score recompute
  7. 2026-09-10 17:22 UTCVendor advisory
  8. 2026-09-10 06:02 UTCVendor advisory
  9. 2026-09-09 18:37 UTCVendor advisory
  10. 2026-09-09 07:16 UTCEG score recompute
  11. 2026-09-09 07:16 UTCVendor advisory
  12. 2026-09-08 22:01 UTCEPSS rescore
  13. 2026-09-08 19:57 UTCVendor advisory
  14. 2026-09-08 16:19 UTCVendor advisory
  15. 2026-09-08 03:45 UTCVendor advisory
  16. 2026-09-07 16:25 UTCEG score recompute
  17. 2026-09-07 16:25 UTCVendor advisory
  18. 2026-09-07 05:05 UTCVendor advisory
  19. 2026-09-06 17:44 UTCEG score recompute
  20. 2026-09-06 17:44 UTCVendor advisory
  21. 2026-09-06 13:48 UTCEPSS rescore
  22. 2026-09-06 06:24 UTCVendor advisory
  23. 2026-09-05 19:03 UTCEG score recompute
  24. 2026-09-05 19:03 UTCVendor advisory
  25. 2026-09-05 15:31 UTCEPSS rescore
Show 6 more
  1. 2026-09-05 07:44 UTCVendor advisory
  2. 2026-09-04 20:24 UTCEG score recompute
  3. 2026-09-04 19:40 UTCEG score recompute
  4. 2026-09-04 17:26 UTCEG score recompute
  5. 2026-09-04 16:39 UTCEG score recompute
  6. 2026-09-04 16:39 UTCMITRE cvelistV5first tracked

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-85152?
CVE-2026-85152 is a high vulnerability published on September 4, 2026. undici 8.10.0 omits the destination origin from the cache and request-deduplication keys when the cache or deduplicate interceptor is composed directly onto a Client or Pool. Because the internal cache key falls back to an empty origin string, a cacheable or in-flight response from one upstream…
When was CVE-2026-85152 disclosed?
CVE-2026-85152 was first published in the National Vulnerability Database on September 4, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-85152 actively exploited?
CVE-2026-85152 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 93.1% of all scored CVEs.
What is the CVSS score of CVE-2026-85152?
CVE-2026-85152 has a CVSS v3 base score of 7.4 (NVD).
How do I remediate CVE-2026-85152?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-85152, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-85152

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