CVE-2026-44579

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.7% (54th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Trending — 3 sources updated this week

Also known asEUVD-2026-30081 (ENISA EUVD)Source: ENISA EUVD

7.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Next.js is a React framework for building full-stack web applications. From to before 15.5.16 and 16.2.5, applications using Partial Prerendering through the Cache Components feature can be vulnerable to connection exhaustion through crafted POST requests to a server action. In affected configurations, a malicious request can trigger a request-body handling deadlock that leaves connections open for an extended period, consuming file descriptors and server capacity until legitimate users are denied service. This vulnerability is fixed in 15.5.16 and 16.2.5.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

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)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.8% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (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 at low or medium mission impact and sooner than that at high.
EPSS PROB
0.7%
EPSS %ILE
54th
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 (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
EG Likelihood
0.7% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-25). 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 low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (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)14 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (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

May 13, 2026

Last Modified

October 26, 2026

Advisory Details (1)

Auto-updated May 13, 2026
Patch available. Sources: github.
GitHub advisoryMentions a patch (unverified)

Denial of Service via connection exhaustion in applications using Cache Components · Advisory · vercel/next.js · GitHub

https://github.com/vercel/next.js/security/advisories/GHSA-mg66-mrh9-m8jx

Patch Availability(3)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatnext2026-08-12redhat
redhatrhtas/rekor-search-ui-rhel9:17839586222026-07-16redhat
redhatrhtas/rekor-search-ui-rhel9:17833271852026-07-09redhat

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

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
next—
  • 15.0.0 up to 15.5.16: fixed in 15.5.16
  • 16.0.0 up to 16.2.5: fixed in 16.2.5
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 40× 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 it from the CNA feed. 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). Most recent first.

Showing the most recent 100 of 224 refreshes 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 124 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.7% · 54th percentile
  2. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.7% · 54th percentile
  3. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.7% · 54th percentile
  4. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.7% · 54th percentile
  5. 2026-10-26 14:37 UTCEG score recompute
  6. 2026-10-26 14:37 UTCVendor advisory
  7. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.7% · 54th percentile
  8. 2026-10-25 14:27 UTCEG score recompute
  9. 2026-10-25 05:36 UTCEG score recompute
  10. 2026-10-25 05:36 UTCVendor advisory
  11. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  12. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  13. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  14. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  15. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  16. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  17. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  18. 2026-10-18 03:39 UTCEG score recompute
  19. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  20. 2026-10-17 13:55 UTCEG score recompute
  21. 2026-10-17 13:55 UTCVendor advisory
  22. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  23. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  24. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  25. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.8% · 54th percentile
Show 75 more
  1. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  2. 2026-10-12 16:05 UTCEG score recompute
  3. 2026-10-11 19:47 UTCEG score recompute
  4. 2026-10-11 17:01 UTCEG score recompute
  5. 2026-10-11 14:27 UTCEG score recompute
  6. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  7. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  8. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  9. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  10. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  11. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  12. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  13. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  14. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  15. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  16. 2026-09-30 04:58 UTCOSV refresh
  17. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  18. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  19. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  20. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  21. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  22. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  23. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  24. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  25. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  26. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  27. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  28. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  29. 2026-09-11 08:23 UTCOSV refresh
  30. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  31. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  32. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  33. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  34. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  35. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  36. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  37. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  38. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  39. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  40. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  41. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  42. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  43. 2026-08-23 17:51 UTCEG score recompute
  44. 2026-08-23 17:51 UTCVendor advisory
  45. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  46. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  47. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  48. 2026-08-20 19:48 UTCEG score recompute
  49. 2026-08-20 19:48 UTCVendor advisory
  50. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  51. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  52. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  53. 2026-08-17 10:39 UTCEG score recompute
  54. 2026-08-17 10:39 UTCVendor advisory
  55. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  56. 2026-08-16 04:03 UTCEG score recompute
  57. 2026-08-16 04:03 UTCVendor advisory
  58. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  59. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  60. 2026-08-15 00:15 UTCVendor advisory
  61. 2026-08-14 13:23 UTCVendor advisory
  62. 2026-08-14 02:32 UTCEG score recompute
  63. 2026-08-14 02:32 UTCVendor advisory
  64. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  65. 2026-08-13 13:38 UTCEG score recompute
  66. 2026-08-13 13:38 UTCVendor advisory
  67. 2026-08-13 12:28 UTCEG score recompute
  68. 2026-08-13 12:28 UTCVendor advisory
  69. 2026-08-13 02:41 UTCVendor advisory
  70. 2026-08-12 15:50 UTCEG score recompute
  71. 2026-08-12 15:50 UTCVendor advisory
  72. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  73. 2026-08-12 02:19 UTCVendor advisory
  74. 2026-08-11 15:28 UTCEG score recompute
  75. 2026-08-11 15:28 UTCVendor advisory

Frequently asked(5)

What is CVE-2026-44579?
CVE-2026-44579 is a high-severity vulnerability; its CVE record was published on May 13, 2026. Next.js is a React framework for building full-stack web applications. From to before 15.5.16 and 16.2.5, applications using Partial Prerendering through the Cache Components feature can be vulnerable to connection exhaustion through crafted POST requests to a server action. In affected…
When was the CVE record for CVE-2026-44579 published?
The CVE record for CVE-2026-44579 was published on May 13, 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 October 26, 2026; the record at its source may have been updated since.
Is CVE-2026-44579 actively exploited?
CVE-2026-44579 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (54th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-44579?
CVE-2026-44579 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-44579?
A fix for CVE-2026-44579 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-44579 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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