CVE-2026-8769

MEDIUMNVD 4.34.3
EchelonGraph scoreMEDIUM confidence

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

Score 4.3 from GitHub Security Advisory (severity: LOW) published 2026-05-18. NVD baseline CVSS 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Elevated
4.3EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 4.3Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

A vulnerability was determined in vercel ai up to 3.0.97. The impacted element is the function createJsonResponseHandler/createJsonErrorResponseHandler of the file packages/provider-utils/src/response-handler.ts of the component provider-utils. This manipulation causes resource consumption. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3
4.3
EG Score
4.3MEDIUMmedium confidence
EG Risk
35
EG Risk 35/100

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 (value × EchelonGraph’s weight)
Severity43% × 45%
The EG Score, 4.3 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (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
0.7%
EPSS %ILE
52nd
KEV
Not listed

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

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

Exploitation public PoC (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.

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

May 17, 2026

Last Modified

May 19, 2026

Advisory Details (1)

Auto-updated May 18, 2026
Patch available.
Web page

Unbounded Provider Response Application DoS via Memory Exhaustion in AI SDK · GitHub

https://gist.github.com/YLChen-007/fb1096bc8428bed9a428f764d9d103bb

Vendor Advisories for CVE-2026-8769(1)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
npm@ai-sdk/provider-utils—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

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
@ai-sdk/provider-utils—
  • every version up to 3.0.28: fixed in 3.0.28
  • 4.0.0-beta.10 up to 4.0.33: fixed in 4.0.33
  • 5.0.0-beta.0 up to 5.0.1: fixed in 5.0.1
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 29× 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 96 of 205 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. 4 repeat rows among the latest 100 are merged into the row they repeat. The 109 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  2. 2026-10-12 14:50 UTCEG score recompute
  3. 2026-10-11 19:16 UTCEG score recompute
  4. 2026-10-11 16:33 UTCEG score recompute
  5. 2026-10-11 13:50 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  6. 2026-10-11 13:49 UTCEG score recompute
  7. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  8. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  9. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  10. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  11. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  12. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  13. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  14. 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  15. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  16. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  17. 2026-09-27 13:49 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  18. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  19. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  20. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  21. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  22. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  23. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  24. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  25. 2026-09-17 19:32 UTCEPSS rescoreEPSS 0.6% · 45th percentile
Show 71 more
  1. 2026-09-16 14:09 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  2. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  3. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  4. 2026-09-13 16:48 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  5. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  6. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  7. 2026-09-11 09:38 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  8. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  9. 2026-09-06 13:48 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  10. 2026-09-05 15:31 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  11. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  12. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  13. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  14. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  15. 2026-08-30 19:18 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  16. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  17. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  18. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  19. 2026-08-26 14:47 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  20. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  21. 2026-08-24 14:18 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  22. 2026-08-23 17:18 UTCEG score recompute
  23. 2026-08-23 17:18 UTCGHSA enrichmentGHSA-866g-f22w-33x8 · GitHub severity LOW · GitHub CVSS 4.3
  24. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  25. 2026-08-22 00:45 UTCEG score recompute
  26. 2026-08-22 00:45 UTCGHSA enrichmentGHSA-866g-f22w-33x8 · GitHub severity LOW · GitHub CVSS 4.3
  27. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  28. 2026-08-20 22:56 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  29. 2026-08-20 19:13 UTCEG score recompute
  30. 2026-08-20 19:13 UTCGHSA enrichmentGHSA-866g-f22w-33x8 · GitHub severity LOW · GitHub CVSS 4.3
  31. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  32. 2026-08-18 13:49 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  33. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  34. 2026-08-17 10:09 UTCEG score recompute
  35. 2026-08-17 10:09 UTCGHSA enrichmentGHSA-866g-f22w-33x8 · GitHub severity LOW · GitHub CVSS 4.3
  36. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  37. 2026-08-16 03:41 UTCEG score recompute
  38. 2026-08-16 03:41 UTCGHSA enrichmentGHSA-866g-f22w-33x8 · GitHub severity LOW · GitHub CVSS 4.3
  39. 2026-08-16 02:15 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  40. 2026-08-15 01:31 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  41. 2026-08-15 00:22 UTCGHSA enrichmentGHSA-866g-f22w-33x8 · GitHub severity LOW · GitHub CVSS 4.3
  42. 2026-08-14 02:14 UTCEG score recompute
  43. 2026-08-14 02:14 UTCGHSA enrichmentGHSA-866g-f22w-33x8 · GitHub severity LOW · GitHub CVSS 4.3
  44. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  45. 2026-08-12 21:17 UTCEG score recompute
  46. 2026-08-12 21:17 UTCGHSA enrichmentGHSA-866g-f22w-33x8 · GitHub severity LOW · GitHub CVSS 4.3
  47. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  48. 2026-08-11 22:55 UTCEG score recompute
  49. 2026-08-11 22:55 UTCGHSA enrichmentGHSA-866g-f22w-33x8 · GitHub severity LOW · GitHub CVSS 4.3
  50. 2026-08-11 13:43 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  51. 2026-08-11 00:45 UTCEG score recompute
  52. 2026-08-11 00:45 UTCGHSA enrichmentGHSA-866g-f22w-33x8 · GitHub severity LOW · GitHub CVSS 4.3
  53. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  54. 2026-08-09 23:49 UTCEG score recompute
  55. 2026-08-09 23:49 UTCGHSA enrichmentGHSA-866g-f22w-33x8 · GitHub severity LOW · GitHub CVSS 4.3
  56. 2026-08-09 13:47 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  57. 2026-08-09 01:42 UTCEG score recompute
  58. 2026-08-09 01:42 UTCGHSA enrichmentGHSA-866g-f22w-33x8 · GitHub severity LOW · GitHub CVSS 4.3
  59. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  60. 2026-08-07 17:42 UTCEG score recompute
  61. 2026-08-07 17:42 UTCGHSA enrichmentGHSA-866g-f22w-33x8 · GitHub severity LOW · GitHub CVSS 4.3
  62. 2026-08-07 16:30 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  63. 2026-08-06 19:34 UTCEG score recompute
  64. 2026-08-06 19:34 UTCGHSA enrichmentGHSA-866g-f22w-33x8 · GitHub severity LOW · GitHub CVSS 4.3
  65. 2026-08-06 13:47 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  66. 2026-08-05 21:27 UTCEG score recompute
  67. 2026-08-05 21:27 UTCGHSA enrichmentGHSA-866g-f22w-33x8 · GitHub severity LOW · GitHub CVSS 4.3
  68. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  69. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  70. 2026-08-04 10:39 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  71. 2026-08-03 18:48 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-8769?
CVE-2026-8769 is a medium-severity vulnerability; its CVE record was published on May 17, 2026. A vulnerability was determined in vercel ai up to 3.0.97. The impacted element is the function createJsonResponseHandler/createJsonErrorResponseHandler of the file packages/provider-utils/src/response-handler.ts of the component provider-utils. This manipulation causes resource consumption. The…
When was the CVE record for CVE-2026-8769 published?
The CVE record for CVE-2026-8769 was published on May 17, 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 May 19, 2026; the record at its source may have been updated since.
Is CVE-2026-8769 actively exploited?
CVE-2026-8769 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (52nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-8769?
CVE-2026-8769 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-8769?
A fix for CVE-2026-8769 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-8769 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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