CVE-2026-13697

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 61% 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, nvd
Trending — 3 sources updated this week
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.1Exploit: None knownExposed: 0

A fix is available — apply it.

undici's cache interceptor mishandles malformed Cache-Control private directives. In undici 7.0.0 up to before 7.29.0 and 8.0.0 up to before 8.9.0, a response carrying a degenerate qualified private directive, such as private set to an empty value, can be stored in the default shared cache and later served to a different caller with the same cache key, disclosing private response bodies and headers including Set-Cookie. Separately, a Cache-Control header that combines an unqualified private directive with a qualified one triggers an uncaught TypeError in the cache-control parser, which rejects the request and, depending on the consumer's error handling, can terminate the process. Both issues affect applications using the cache interceptor in shared mode, including the default configuration. The issues are fixed in undici 7.29.0 and 8.9.0.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
46(Track)
EG Risk 46/100SSVC: 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
Severity91% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
39%
KEV
Not listed

Published

July 29, 2026

Last Modified

August 4, 2026

Advisory Details (2)

Auto-updated Sep 16, 2026
Patch available. Sources: github.
github Patch Available

undici vulnerable to cross-user information disclosure and parse-time crash via degenerate private cache directives · Advisory · nodejs/undici · GitHub

https://github.com/nodejs/undici/security/advisories/GHSA-4cwx-7wf7-3272
generic

Security Advisories | OpenJS Foundation CVE Numbering Authority

https://cna.openjsf.org/security-advisories.html

Vendor Advisories for CVE-2026-13697(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 / EcosystemFixed in / 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 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 ... 8.5.0+dfsg+~cs3.2.0-3 (14 versions)8.9.0+dfsg+~cs3.2.0-1—
npm(1)
PackageVulnerable rangeFixed inDependents
undici—8.9.0—

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 36× in last 7d / 151× 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 277 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-13697?
CVE-2026-13697 is a critical vulnerability published on July 29, 2026. undici's cache interceptor mishandles malformed Cache-Control private directives. In undici 7.0.0 up to before 7.29.0 and 8.0.0 up to before 8.9.0, a response carrying a degenerate qualified private directive, such as private set to an empty value, can be stored in the default shared cache and…
When was CVE-2026-13697 disclosed?
CVE-2026-13697 was first published in the National Vulnerability Database 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-2026-13697 actively exploited?
CVE-2026-13697 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 60.6% of all scored CVEs.
What is the CVSS score of CVE-2026-13697?
CVE-2026-13697 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-13697?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13697, 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

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