CVE-2026-48746

CRITICALPre-NVD 9.19.1
EchelonGraph scoreMEDIUM confidence

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

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-16. A secondary CVSS source baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Elevated

Also known asEUVD-2026-38401 (ENISA EUVD) · GHSA-94f4-hr76-p5j6 (GitHub Security Advisories) · PYSEC-2026-226 (OSV.dev)Source: ENISA EUVD

9.1EG
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).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 1.2%CVSS: 9.1Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

vLLM is an inference and serving engine for large language models (LLMs). From 0.3.0 until 0.22.0, a vulnerability in ASGI web servers and starlette's trust on those web servers enables an authentication bypass of the OpenAI API AuthenticationMiddleware. It allows to use the API without providing the configured VLLM_API_KEY or --api-key. This vulnerability is fixed in 0.22.0.

CVSS v3
9.1
EG Score
9.1CRITICALmedium confidence
EG Risk
72
EG Risk 72/100

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)
Severity91% × 45%
Impact severity (EG Severity): CVSS 9.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
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 public PoC (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
1.2%
EPSS %ILE
67th
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 (9.1): severity, escalated by confirmed exploitation. This CVE's 9.1 is its impact severity (EG Severity), not escalated.

EG Severity
9.1 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
1.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-11). 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, and whom BOD 26-04 binds: 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 public PoC (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.

The score's inputs: 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

June 16, 2026

Last Modified

October 25, 2026

Advisory Details (10)

Auto-updated Sep 15, 2026
Patch available. Sources: github_pr, github, redhat.
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:42644
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:42142
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:42132
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:36006
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:36005
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:30089
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:30088
Web page

Advisory X41-2026-002: Request Host Header not Validated in Starlette | X41 D-Sec - Penetration Tests and Source Code Audits

https://x41-dsec.de/lab/advisories/x41-2026-002-starlette
GitHub advisoryMentions a patch (unverified)

OpenAI API Auth Bypass · Advisory · vllm-project/vllm · GitHub

https://github.com/vllm-project/vllm/security/advisories/GHSA-94f4-hr76-p5j6
GitHub pull request

[Frontend] Simplify AuthenticationMiddleware path extraction

Fix merged in vllm-project/vllm PR #43426 on 2026-05-22 — awaiting tagged release

https://github.com/vllm-project/vllm/pull/43426

Patch Availability(24)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatrhoai/odh-feature-server-rhel9:17921485232026-10-21redhat
redhatrhoai/odh-trustyai-garak-lls-provider-dsp-rhel9:17917858042026-10-19redhat
redhatrhelai3/bootc-rocm-rhel9:17906144472026-10-05redhat
redhatrhelai3/disk-image-cuda-rhel9:17909574172026-10-05redhat
redhatrhoai/odh-trustyai-garak-lls-provider-dsp-rhel9:17900853102026-09-30redhat
redhatrhaii/vllm-spyre-rhel9:17900761412026-09-23redhat
redhatrhaii/vllm-cpu-rhel9:17900757932026-09-23redhat
redhatrhaii/vllm-rocm-rhel9:17901096202026-09-23redhat
redhatrhaii/vllm-cuda-rhel9:17900901312026-09-23redhat
redhatrhaii/vllm-rocm-rhel9:17896811262026-09-21redhat
redhatrhaii/vllm-cuda-rhel9:17896811262026-09-21redhat
redhatrhaii/vllm-cpu-rhel9:17896811282026-09-21redhat
redhatrhaii/vllm-spyre-rhel9:17896812012026-09-21redhat
redhatrhaiis/vllm-cuda-rhel9:17878605802026-08-31redhat
redhatrhaiis/vllm-rocm-rhel9:17878848732026-08-31redhat
redhatmta/mta-solution-server-rhel9:17841098832026-07-21redhat
redhatrhoai/odh-caikit-tgis-serving-rhel9:17830824302026-07-21redhat
redhatansible-automation-platform-26/mcp-tools-rhel9:17839206402026-07-20redhat
redhatansible-automation-platform-27/mcp-tools-rhel9:17839184032026-07-20redhat
redhatrhaiis/vllm-rocm-rhel9:17829512442026-07-06redhat
redhatrhaiis/vllm-cuda-rhel9:17829510122026-07-06redhat
redhatrhaiis/vllm-rocm-rhel9:17823530932026-06-25redhat
redhatrhaiis/vllm-cuda-rhel9:17823528472026-06-25redhat
pipvllm @ 0.22.0 (fixes >= 0.3.0, < 0.22.0)—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)
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
vllm0.10.0 ... 0.9.2 (68 versions)
  • 0.3.0 up to 0.22.0: fixed in 0.22.0
—

Weakness Classification(2)

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

Additional Vendor Advisories

(3)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 21× in last 7d / 74× 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 482 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 382 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-12 16:34 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  2. 2026-11-12 10:35 UTCEchelonGraph re-scored
  3. 2026-11-12 10:35 UTCVendor advisory
  4. 2026-11-12 10:35 UTCGHSA enrichmentGHSA-94f4-hr76-p5j6 · GitHub severity CRITICAL · GitHub CVSS 9.1
  5. 2026-11-11 16:39 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  6. 2026-11-11 11:33 UTCEchelonGraph re-scored
  7. 2026-11-11 11:33 UTCGHSA enrichmentGHSA-94f4-hr76-p5j6 · GitHub severity CRITICAL · GitHub CVSS 9.1
  8. 2026-11-10 16:44 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  9. 2026-11-10 12:30 UTCEchelonGraph re-scored
  10. 2026-11-10 12:30 UTCVendor advisory
  11. 2026-11-10 12:30 UTCGHSA enrichmentGHSA-94f4-hr76-p5j6 · GitHub severity CRITICAL · GitHub CVSS 9.1
  12. 2026-11-09 16:35 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  13. 2026-11-09 13:25 UTCEchelonGraph re-scored
  14. 2026-11-09 13:25 UTCVendor advisory
  15. 2026-11-09 13:25 UTCGHSA enrichmentGHSA-94f4-hr76-p5j6 · GitHub severity CRITICAL · GitHub CVSS 9.1
  16. 2026-11-08 16:39 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  17. 2026-11-08 14:23 UTCEchelonGraph re-scored
  18. 2026-11-08 14:23 UTCVendor advisory
  19. 2026-11-08 14:23 UTCGHSA enrichmentGHSA-94f4-hr76-p5j6 · GitHub severity CRITICAL · GitHub CVSS 9.1
  20. 2026-11-07 16:39 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  21. 2026-11-07 15:18 UTCEchelonGraph re-scored
  22. 2026-11-07 15:18 UTCVendor advisory
  23. 2026-11-07 15:18 UTCGHSA enrichmentGHSA-94f4-hr76-p5j6 · GitHub severity CRITICAL · GitHub CVSS 9.1
  24. 2026-11-06 16:38 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  25. 2026-11-06 16:16 UTCVendor advisory
Show 75 more
  1. 2026-11-06 16:16 UTCGHSA enrichmentGHSA-94f4-hr76-p5j6 · GitHub severity CRITICAL · GitHub CVSS 9.1
  2. 2026-11-06 10:25 UTCOSV refresh
  3. 2026-11-05 17:10 UTCEchelonGraph re-scored
  4. 2026-11-05 17:10 UTCVendor advisory
  5. 2026-11-05 17:10 UTCGHSA enrichmentGHSA-94f4-hr76-p5j6 · GitHub severity CRITICAL · GitHub CVSS 9.1
  6. 2026-11-05 16:37 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  7. 2026-11-04 18:08 UTCEchelonGraph re-scored
  8. 2026-11-04 18:08 UTCVendor advisory
  9. 2026-11-04 18:08 UTCGHSA enrichmentGHSA-94f4-hr76-p5j6 · GitHub severity CRITICAL · GitHub CVSS 9.1
  10. 2026-11-04 16:35 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  11. 2026-11-03 19:05 UTCEchelonGraph re-scored
  12. 2026-11-03 19:05 UTCVendor advisory
  13. 2026-11-03 19:05 UTCGHSA enrichmentGHSA-94f4-hr76-p5j6 · GitHub severity CRITICAL · GitHub CVSS 9.1
  14. 2026-11-03 16:48 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  15. 2026-11-02 20:01 UTCEchelonGraph re-scored
  16. 2026-11-02 20:01 UTCVendor advisory
  17. 2026-11-02 20:01 UTCGHSA enrichmentGHSA-94f4-hr76-p5j6 · GitHub severity CRITICAL · GitHub CVSS 9.1
  18. 2026-11-02 16:45 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  19. 2026-11-01 20:55 UTCEchelonGraph re-scored
  20. 2026-11-01 20:55 UTCVendor advisory
  21. 2026-11-01 20:55 UTCGHSA enrichmentGHSA-94f4-hr76-p5j6 · GitHub severity CRITICAL · GitHub CVSS 9.1
  22. 2026-11-01 16:34 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  23. 2026-11-01 07:47 UTCGHSA enrichmentGHSA-94f4-hr76-p5j6 · GitHub severity CRITICAL · GitHub CVSS 9.1
  24. 2026-11-01 07:47 UTCEchelonGraph re-scored
  25. 2026-10-31 21:54 UTCEchelonGraph re-scored
  26. 2026-10-31 21:54 UTCVendor advisory
  27. 2026-10-31 16:32 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  28. 2026-10-30 22:51 UTCEchelonGraph re-scored
  29. 2026-10-30 22:51 UTCVendor advisory
  30. 2026-10-30 16:34 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  31. 2026-10-29 23:49 UTCEchelonGraph re-scored
  32. 2026-10-29 23:49 UTCVendor advisory
  33. 2026-10-29 16:33 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  34. 2026-10-29 00:48 UTCEchelonGraph re-scored
  35. 2026-10-29 00:48 UTCVendor advisory
  36. 2026-10-28 16:32 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  37. 2026-10-28 01:42 UTCEchelonGraph re-scored
  38. 2026-10-28 01:42 UTCVendor advisory
  39. 2026-10-27 16:32 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  40. 2026-10-27 02:34 UTCEchelonGraph re-scored
  41. 2026-10-27 02:34 UTCVendor advisory
  42. 2026-10-26 16:31 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  43. 2026-10-25 23:27 UTCEchelonGraph re-scored
  44. 2026-10-25 23:27 UTCVendor advisory
  45. 2026-10-25 16:33 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  46. 2026-10-25 14:23 UTCEchelonGraph re-scored
  47. 2026-10-25 07:49 UTCEchelonGraph re-scored
  48. 2026-10-25 07:49 UTCVendor advisory
  49. 2026-10-24 16:33 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  50. 2026-10-24 08:47 UTCEchelonGraph re-scored
  51. 2026-10-24 08:47 UTCVendor advisory
  52. 2026-10-23 16:32 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  53. 2026-10-23 09:45 UTCEchelonGraph re-scored
  54. 2026-10-23 09:45 UTCVendor advisory
  55. 2026-10-22 16:34 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  56. 2026-10-22 10:40 UTCEchelonGraph re-scored
  57. 2026-10-22 10:40 UTCVendor advisory
  58. 2026-10-21 16:33 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  59. 2026-10-21 11:35 UTCEchelonGraph re-scored
  60. 2026-10-21 11:35 UTCVendor advisory
  61. 2026-10-20 16:33 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  62. 2026-10-20 12:32 UTCEchelonGraph re-scored
  63. 2026-10-20 12:32 UTCVendor advisory
  64. 2026-10-19 16:32 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  65. 2026-10-19 13:18 UTCEchelonGraph re-scored
  66. 2026-10-19 13:18 UTCVendor advisory
  67. 2026-10-18 16:32 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  68. 2026-10-18 12:33 UTCVendor advisory
  69. 2026-10-18 03:34 UTCEchelonGraph re-scored
  70. 2026-10-17 16:34 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  71. 2026-10-17 13:29 UTCEchelonGraph re-scored
  72. 2026-10-17 13:29 UTCVendor advisory
  73. 2026-10-16 16:42 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  74. 2026-10-16 14:26 UTCEchelonGraph re-scored
  75. 2026-10-16 14:26 UTCVendor advisory

Frequently asked(5)

What is CVE-2026-48746?
CVE-2026-48746 is a critical-severity vulnerability; its CVE record was published on June 16, 2026. vLLM is an inference and serving engine for large language models (LLMs). From 0.3.0 until 0.22.0, a vulnerability in ASGI web servers and starlette's trust on those web servers enables an authentication bypass of the OpenAI API AuthenticationMiddleware. It allows to use the API without providing…
When was the CVE record for CVE-2026-48746 published?
The CVE record for CVE-2026-48746 was published on June 16, 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 25, 2026; the record at its source may have been updated since.
Is CVE-2026-48746 actively exploited?
CVE-2026-48746 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.2% probability of exploitation in the next 30 days (67th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-48746?
CVE-2026-48746 has a CVSS base score of 9.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-48746?
A fix for CVE-2026-48746 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-48746 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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