CVE-2026-14643

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.4% (31st percentile of EPSS-scored CVEs). 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, nvd
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

undici's cache interceptor mishandles optional whitespace placed around the equals sign of a qualified no-cache or private Cache-Control directive. In undici from 7.0.0 up to before 7.29.0 and from 8.0.0 up to before 8.9.0, the parser either drops the directive or stores a field name with literal quote characters, so the cache decision fails to recognize the qualification and the response is stored. In shared-cache mode, this lets a response containing one user's authenticated data be served from cache to a later caller, including an unauthenticated one, when both requests resolve to the same cache key. It affects applications that enable the cache interceptor in shared mode, forward Authorization headers upstream, and receive cacheable responses with qualified directives padded with whitespace around the equals sign. This is the whitespace-around-equals variant that the fix for CVE-2026-9678 did not normalize, and it is fixed in undici 7.29.0 and 8.9.0.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
34
EG Risk 34/100CISA SSVC

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
Severity75% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
31st
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

July 29, 2026

Last Modified

August 4, 2026

Advisory Details (2)

Auto-updated Jul 29, 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-user information disclosure via whitespace around equals in Cache-Control directives · Advisory · nodejs/undici · GitHub

https://github.com/nodejs/undici/security/advisories/GHSA-jr45-8vmc-qm54

Vendor Advisories for CVE-2026-14643(3)

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

Patch Availability(2)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatnodejs24-main-24.18.1-0.1.hum12026-07-30redhat
redhatnodejs26-main-26.5.1-1.5.hum12026-07-29redhat

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

(4 across 4 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
node-undici5.15.0+dfsg1+~cs20.10.9.3-1 ... 8.9.0+dfsg+~cs3.2.0-1 (40 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
node-undici7.15.0+dfsg+~cs3.2.0-1 ... 8.9.0+dfsg+~cs3.2.0-1 (16 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
node-undici7.15.0+dfsg+~cs3.2.0-1 ... 8.5.0+dfsg+~cs3.2.0-3 (14 versions)
  • every version up to 8.9.0+dfsg+~cs3.2.0-1: fixed in 8.9.0+dfsg+~cs3.2.0-1
—
npm(1)
PackageVulnerable rangeFix by version rangeDependents
undici—
  • 7.0.0 up to 7.29.0: fixed in 7.29.0
  • 8.0.0 up to 8.9.0: fixed in 8.9.0
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 16× in last 7d / 74× 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.

Showing the most recent 100 of 193 total refreshes for this CVE.

  1. 2026-10-05 00:05 UTCEG score recompute
  2. 2026-10-05 00:05 UTCVendor advisory
  3. 2026-10-04 23:21 UTCEPSS rescore
  4. 2026-10-04 06:58 UTCEG score recompute
  5. 2026-10-04 06:58 UTCVendor advisory
  6. 2026-10-03 14:25 UTCEPSS rescore
  7. 2026-10-02 17:56 UTCEG score recompute
  8. 2026-10-02 17:56 UTCVendor advisory
  9. 2026-10-01 19:49 UTCEPSS rescore
  10. 2026-10-01 03:32 UTCEG score recompute
  11. 2026-10-01 03:32 UTCVendor advisory
  12. 2026-09-30 15:02 UTCEPSS rescore
  13. 2026-09-29 15:20 UTCEPSS rescore
  14. 2026-09-29 07:32 UTCEG score recompute
  15. 2026-09-29 07:32 UTCVendor advisory
  16. 2026-09-28 13:51 UTCEPSS rescore
  17. 2026-09-28 08:39 UTCVendor advisory
  18. 2026-09-27 19:35 UTCEG score recompute
  19. 2026-09-27 19:35 UTCVendor advisory
  20. 2026-09-27 13:47 UTCEPSS rescore
  21. 2026-09-26 15:58 UTCEPSS rescore
  22. 2026-09-25 05:30 UTCEG score recompute
  23. 2026-09-25 05:30 UTCVendor advisory
  24. 2026-09-24 10:56 UTCVendor advisory
  25. 2026-09-23 21:47 UTCEG score recompute
Show 75 more
  1. 2026-09-23 21:47 UTCVendor advisory
  2. 2026-09-23 05:18 UTCVendor advisory
  3. 2026-09-22 15:45 UTCEG score recompute
  4. 2026-09-22 15:45 UTCVendor advisory
  5. 2026-09-20 00:20 UTCEG score recompute
  6. 2026-09-20 00:20 UTCVendor advisory
  7. 2026-09-19 04:43 UTCEG score recompute
  8. 2026-09-19 04:43 UTCVendor advisory
  9. 2026-09-18 19:27 UTCEPSS rescore
  10. 2026-09-18 15:12 UTCVendor advisory
  11. 2026-09-18 01:39 UTCEG score recompute
  12. 2026-09-18 01:39 UTCVendor advisory
  13. 2026-09-17 01:34 UTCEG score recompute
  14. 2026-09-17 01:34 UTCVendor advisory
  15. 2026-09-16 14:07 UTCEPSS rescore
  16. 2026-09-16 05:47 UTCEG score recompute
  17. 2026-09-16 05:47 UTCVendor advisory
  18. 2026-09-16 05:14 UTCEPSS rescore
  19. 2026-09-15 07:45 UTCEG score recompute
  20. 2026-09-15 07:45 UTCVendor advisory
  21. 2026-09-14 04:23 UTCEG score recompute
  22. 2026-09-14 04:23 UTCVendor advisory
  23. 2026-09-13 16:46 UTCEPSS rescore
  24. 2026-09-13 15:19 UTCVendor advisory
  25. 2026-09-13 01:36 UTCEG score recompute
  26. 2026-09-13 01:36 UTCVendor advisory
  27. 2026-09-12 15:00 UTCEPSS rescore
  28. 2026-09-12 12:28 UTCVendor advisory
  29. 2026-09-11 22:02 UTCEG score recompute
  30. 2026-09-11 22:02 UTCVendor advisory
  31. 2026-09-11 14:52 UTCEPSS rescore
  32. 2026-09-11 09:36 UTCEPSS rescore
  33. 2026-09-11 08:53 UTCVendor advisory
  34. 2026-09-10 19:48 UTCEG score recompute
  35. 2026-09-10 19:48 UTCVendor advisory
  36. 2026-09-10 09:34 UTCEPSS rescore
  37. 2026-09-10 04:29 UTCVendor advisory
  38. 2026-09-09 07:42 UTCEG score recompute
  39. 2026-09-09 07:42 UTCVendor advisory
  40. 2026-09-08 22:00 UTCEPSS rescore
  41. 2026-09-07 20:36 UTCEG score recompute
  42. 2026-09-07 20:36 UTCVendor advisory
  43. 2026-09-07 16:01 UTCEPSS rescore
  44. 2026-09-06 22:31 UTCEG score recompute
  45. 2026-09-06 22:31 UTCVendor advisory
  46. 2026-09-06 13:47 UTCEPSS rescore
  47. 2026-09-06 08:07 UTCVendor advisory
  48. 2026-09-05 19:02 UTCEG score recompute
  49. 2026-09-05 19:02 UTCVendor advisory
  50. 2026-09-05 05:09 UTCEG score recompute
  51. 2026-09-05 05:08 UTCVendor advisory
  52. 2026-09-04 11:52 UTCEG score recompute
  53. 2026-09-04 11:52 UTCVendor advisory
  54. 2026-09-04 05:06 UTCEPSS rescore
  55. 2026-09-02 14:11 UTCEPSS rescore
  56. 2026-09-01 22:45 UTCEG score recompute
  57. 2026-09-01 22:45 UTCVendor advisory
  58. 2026-09-01 13:53 UTCEPSS rescore
  59. 2026-09-01 04:39 UTCEPSS rescore
  60. 2026-08-31 23:52 UTCVendor advisory
  61. 2026-08-31 01:15 UTCEG score recompute
  62. 2026-08-31 01:15 UTCVendor advisory
  63. 2026-08-30 19:17 UTCEPSS rescore
  64. 2026-08-30 12:10 UTCEG score recompute
  65. 2026-08-30 12:10 UTCVendor advisory
  66. 2026-08-30 01:22 UTCEPSS rescore
  67. 2026-08-29 23:04 UTCEG score recompute
  68. 2026-08-29 23:04 UTCVendor advisory
  69. 2026-08-28 21:41 UTCEPSS rescore
  70. 2026-08-27 20:54 UTCEG score recompute
  71. 2026-08-27 20:54 UTCVendor advisory
  72. 2026-08-27 14:25 UTCEPSS rescore
  73. 2026-08-27 03:26 UTCEG score recompute
  74. 2026-08-27 03:26 UTCVendor advisory
  75. 2026-08-26 14:46 UTCEPSS rescore

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-14643?
CVE-2026-14643 is a high vulnerability published on July 29, 2026. undici's cache interceptor mishandles optional whitespace placed around the equals sign of a qualified no-cache or private Cache-Control directive. In undici from 7.0.0 up to before 7.29.0 and from 8.0.0 up to before 8.9.0, the parser either drops the directive or stores a field name with literal…
When was CVE-2026-14643 disclosed?
CVE-2026-14643 was first published on July 29, 2026, with the most recent update on August 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-14643 actively exploited?
CVE-2026-14643 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (31st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-14643?
CVE-2026-14643 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-14643?
A fix for CVE-2026-14643 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-14643 are linked in the Vendor Advisories panel on this page.

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