CVE-2026-84947

LOWNVD 5.33.7
EchelonGraph scoreMEDIUM confidence

“▼” beside the score: it is lower than NVD's CVSS score.

Score 3.7 from GitHub Security Advisory (severity: LOW) published 2026-09-29. NVD baseline CVSS 5.3; sources differ by 1.6.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3

Also known asEUVD-2026-71517 (ENISA EUVD) · GHSA-2gqq-gqf2-x968 (GitHub Security Advisories)Source: ENISA EUVD

3.7EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

undici's dump interceptor reads and discards a response body up to a configurable maximum size. When a response declares a Content-Length that exceeds the maximum, the interceptor aborts cleanly, but when a response has no Content-Length and is chunked, the interceptor instead signals completion early once the accumulated size reaches the maximum, without pausing or aborting the request. Because the underlying parser keeps delivering body bytes, a second completion signal fires and trips an internal assertion, which aborts the request and tears down the connection. The application is left observing a misleading successful status with an empty or truncated body while the connection has actually been disconnected. This affects undici versions from 7.1.0 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.

CVSS v3
5.3
EG Score
3.7LOWmedium confidence
EG Risk
17
EG Risk 17/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity37% × 45%
Impact severity (EG Severity): CVSS 3.7 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
9th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (3.7): severity, escalated by confirmed exploitation. This CVE's 3.7 is its impact severity (EG Severity), not escalated.

EG Severity
3.7 LOWCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-31). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track 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). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

September 4, 2026

Last Modified

September 15, 2026

Advisory Details (2)

Auto-updated Sep 15, 2026
Patch available. Sources: github.
GitHub advisoryMentions a patch (unverified)

undici vulnerable to response truncation via oversized chunked responses in the dump interceptor · Advisory · nodejs/undici · GitHub

https://github.com/nodejs/undici/security/advisories/GHSA-2gqq-gqf2-x968
Web page

Security Advisories | OpenJS Foundation CVE Numbering Authority

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

Patch Availability(5)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatgrafana12-4-main-12.4.10-0.2.hum12026-09-09redhat
redhatnodejs24-main-24.18.1-0.2.2.hum12026-08-12redhat
redhatnodejs26-main-26.7.0-1.5.2.hum12026-08-12redhat
npmundici @ 7.29.1 (fixes >= 7.1.0, < 7.29.1)—ghsa
npmundici @ 8.10.2 (fixes >= 8.0.0, < 8.10.2)—ghsa

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 ... 8.9.0+dfsg+~cs3.2.0-1 (15 versions)
  • every version up to 8.10.2+dfsg+~cs3.2.2-1: fixed in 8.10.2+dfsg+~cs3.2.2-1
—
npm(1)
PackageVulnerable rangeFix by version rangeDependents
undici—
  • 7.1.0 up to 7.29.1: fixed in 7.29.1
  • 8.0.0 up to 8.10.2: fixed in 8.10.2
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 33× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 138 rows on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 38 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 16:57 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  2. 2026-11-12 16:34 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  3. 2026-11-11 16:41 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  4. 2026-11-10 16:45 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  5. 2026-11-09 16:36 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  6. 2026-11-08 16:41 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  7. 2026-11-07 16:40 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  8. 2026-11-06 16:39 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  9. 2026-11-05 16:38 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  10. 2026-11-04 16:37 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  11. 2026-11-03 16:49 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  12. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  13. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  14. 2026-11-01 07:38 UTCGHSA enrichmentGHSA-2gqq-gqf2-x968 · GitHub severity LOW · GitHub CVSS 3.7
  15. 2026-11-01 07:38 UTCEchelonGraph re-scored▼ 1.60
  16. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  17. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  18. 2026-10-30 00:25 UTCOSV refresh
  19. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  20. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  21. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  22. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  23. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  24. 2026-10-25 13:55 UTCEchelonGraph re-scored
  25. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
Show 75 more
  1. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  2. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  3. 2026-10-22 12:56 UTCEchelonGraph re-scored
  4. 2026-10-22 12:56 UTCVendor advisory
  5. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  6. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  7. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  8. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  9. 2026-10-18 03:06 UTCEchelonGraph re-scored
  10. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  11. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  12. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  13. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  14. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  15. 2026-10-12 14:53 UTCEchelonGraph re-scored
  16. 2026-10-11 19:18 UTCEchelonGraph re-scored
  17. 2026-10-11 16:34 UTCEchelonGraph re-scored
  18. 2026-10-11 13:52 UTCEchelonGraph re-scored
  19. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  20. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  21. 2026-10-09 23:06 UTCEchelonGraph re-scored
  22. 2026-10-09 23:06 UTCVendor advisory
  23. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  24. 2026-10-09 01:10 UTCEchelonGraph re-scored
  25. 2026-10-09 01:10 UTCVendor advisory
  26. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  27. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  28. 2026-10-07 23:05 UTCVendor advisory
  29. 2026-10-06 18:20 UTCEchelonGraph re-scored
  30. 2026-10-06 18:20 UTCVendor advisory
  31. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  32. 2026-10-05 20:32 UTCEchelonGraph re-scored
  33. 2026-10-05 20:32 UTCVendor advisory
  34. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  35. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  36. 2026-10-04 22:44 UTCVendor advisory
  37. 2026-10-04 00:56 UTCEchelonGraph re-scored
  38. 2026-10-04 00:56 UTCVendor advisory
  39. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  40. 2026-10-03 01:30 UTCEchelonGraph re-scored
  41. 2026-10-03 01:30 UTCVendor advisory
  42. 2026-10-02 17:57 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  43. 2026-10-02 03:38 UTCEchelonGraph re-scored
  44. 2026-10-02 03:38 UTCVendor advisory
  45. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  46. 2026-10-01 04:24 UTCEchelonGraph re-scored
  47. 2026-10-01 04:24 UTCVendor advisory
  48. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  49. 2026-09-30 06:35 UTCEchelonGraph re-scored
  50. 2026-09-30 06:35 UTCVendor advisory
  51. 2026-09-29 08:46 UTCEchelonGraph re-scored
  52. 2026-09-29 08:46 UTCVendor advisory
  53. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  54. 2026-09-28 10:57 UTCEchelonGraph re-scored
  55. 2026-09-28 10:57 UTCVendor advisory
  56. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  57. 2026-09-27 13:09 UTCEchelonGraph re-scored
  58. 2026-09-27 13:09 UTCVendor advisory
  59. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  60. 2026-09-26 15:20 UTCEchelonGraph re-scored
  61. 2026-09-26 15:20 UTCVendor advisory
  62. 2026-09-25 16:14 UTCVendor advisory
  63. 2026-09-24 18:24 UTCEchelonGraph re-scored
  64. 2026-09-24 18:24 UTCVendor advisory
  65. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  66. 2026-09-23 19:45 UTCEchelonGraph re-scored
  67. 2026-09-23 19:45 UTCVendor advisory
  68. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  69. 2026-09-22 21:05 UTCEchelonGraph re-scored
  70. 2026-09-22 21:05 UTCVendor advisory
  71. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  72. 2026-09-21 23:17 UTCEchelonGraph re-scored
  73. 2026-09-21 23:17 UTCVendor advisory
  74. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  75. 2026-09-21 01:29 UTCEchelonGraph re-scored

Frequently asked(5)

What is CVE-2026-84947?
CVE-2026-84947 is a low-severity vulnerability; its CVE record was published on September 4, 2026. undici's dump interceptor reads and discards a response body up to a configurable maximum size. When a response declares a Content-Length that exceeds the maximum, the interceptor aborts cleanly, but when a response has no Content-Length and is chunked, the interceptor instead signals completion…
When was the CVE record for CVE-2026-84947 published?
The CVE record for CVE-2026-84947 was published on September 4, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 15, 2026; the record at its source may have been updated since.
Is CVE-2026-84947 actively exploited?
CVE-2026-84947 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (9th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-84947?
CVE-2026-84947 has a CVSS v3 base score of 5.3 (NVD). EchelonGraph synthesises NVD + FIRST EPSS + GHSA into a combined EG score of 3.7 (LOW).
How do I remediate CVE-2026-84947?
A fix for CVE-2026-84947 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-84947 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-84947

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