CVE-2026-102274

HIGHNVD 7.57.5
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.5% (46th percentile of EPSS-scored CVEs). GitHub Security Advisory CVSS 5.9 is lower than this score; a lower GitHub score revises it only when its advisory is newer than the CVE record's last change, and this advisory (published 2026-09-29) is not newer than that change (2026-10-06), so it does not.

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

Also known asEUVD-2026-88542 (ENISA EUVD) · GHSA-w6j9-cwv2-h6wq (GitHub Security Advisories) · PYSEC-2026-4152 (OSV.dev)Source: ENISA EUVD

7.5EG
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: 0.5%CVSS: 7.5Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

PyJWT is a Python implementation of JSON Web Token standards. From 2.9.0 until 2.14.0, PyJWKSet does not catch the plain ValueError raised for malformed RSA JWK components by RSAAlgorithm.from_jwk in jwt/api_jwk.py. This occurs when a JWK Set contains a malformed RSA key alongside otherwise usable keys. As a result, one malformed member aborts construction of the entire PyJWKSet. Consequently, applications can experience authentication failures or request-level denial of service. This issue is fixed in version 2.14.0.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
50
EG Risk 50/100

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.
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
0.5%
EPSS %ILE
46th
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.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
0.5% 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; Track* at high (mission-essential systems).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 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.

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 28, 2026

Last Modified

October 6, 2026

Advisory Details (3)

Auto-updated Sep 28, 2026
Patch available. Sources: github, github_commit, github_release.
GitHub release Patch Available

2.14.0

Patch available: jpadilla/pyjwt 2.14.0

https://github.com/jpadilla/pyjwt/releases/tag/2.14.0
GitHub commit Patch Available

commit 8915570a0bfd (jpadilla/pyjwt)

Patch available: jpadilla/pyjwt 2.14.0 (contains commit 8915570a0bfd)

https://github.com/jpadilla/pyjwt/commit/8915570a0bfda9f0ff0e34e7fb09bdb9d71580cf
GitHub advisoryMentions a patch (unverified)

Malformed RSA JWK aborts parsing of an entire JWK Set · Advisory · jpadilla/pyjwt · GitHub

https://github.com/jpadilla/pyjwt/security/advisories/GHSA-w6j9-cwv2-h6wq

Patch Availability(9)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntupython3-jwt (1.3.0-1ubuntu0.1+esm4) @ xenial2026-11-11ubuntu
redhatrhelai3/bootc-rocm-rhel9:17931358632026-10-29redhat
redhatrhelai3/disk-image-cuda-rhel9:17932067582026-10-29redhat
redhatrhaii/vllm-gaudi-rhel9:17914271822026-10-13redhat
redhatrhaii/vllm-cuda-rhel9:17914736312026-10-13redhat
redhatrhaii/vllm-cpu-rhel9:17914736142026-10-13redhat
redhatrhaii/vllm-spyre-rhel9:17918183572026-10-13redhat
redhatrhaii/vllm-rocm-rhel9:17914258692026-10-13redhat
pipPyJWT @ 2.14.0 (fixes >= 2.9.0, <= 2.13.0)—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

(4 across 4 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
pyjwt2.10.1-1 ... 2.7.0-1 (13 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
pyjwt2.10.1-2 ... 2.15.1-1 (10 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
pyjwt2.10.1-2 ... 2.13.0-1 (6 versions)
  • every version up to 2.14.0-1: fixed in 2.14.0-1
—
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
pyjwt2.10.0 ... 2.9.0 (7 versions)
  • 2.9.0 up to 2.14.0: fixed in 2.14.0
—

Weakness Classification(1)

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

Additional Vendor Advisories

(1)

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 9× in last 7d / 37× 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.

  1. 2026-11-12 16:32 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  2. 2026-11-11 18:28 UTCEchelonGraph re-scored
  3. 2026-11-11 18:28 UTCVendor advisory
  4. 2026-11-11 18:28 UTCGHSA enrichmentGHSA-w6j9-cwv2-h6wq · GitHub severity MODERATE · GitHub CVSS 5.9
  5. 2026-11-11 16:37 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  6. 2026-11-10 16:41 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  7. 2026-11-09 16:33 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  8. 2026-11-08 16:37 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  9. 2026-11-07 16:37 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  10. 2026-11-06 16:35 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  11. 2026-11-05 16:36 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  12. 2026-11-04 16:34 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  13. 2026-11-04 02:58 UTCEchelonGraph re-scored
  14. 2026-11-04 02:58 UTCVendor advisory
  15. 2026-11-04 02:58 UTCGHSA enrichmentGHSA-w6j9-cwv2-h6wq · GitHub severity MODERATE · GitHub CVSS 5.9
  16. 2026-11-03 16:45 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  17. 2026-11-02 16:43 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  18. 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  19. 2026-11-01 08:00 UTCGHSA enrichmentGHSA-w6j9-cwv2-h6wq · GitHub severity MODERATE · GitHub CVSS 5.9
  20. 2026-11-01 08:00 UTCEchelonGraph re-scored
  21. 2026-10-31 16:31 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  22. 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  23. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  24. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  25. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.5% · 45th percentile
Show 68 more
  1. 2026-10-27 11:28 UTCEchelonGraph re-scored
  2. 2026-10-27 11:28 UTCVendor advisory
  3. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  4. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  5. 2026-10-25 14:56 UTCEchelonGraph re-scored
  6. 2026-10-24 16:31 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  7. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  8. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  9. 2026-10-21 16:31 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  10. 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  11. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  12. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  13. 2026-10-18 05:10 UTCEchelonGraph re-scored
  14. 2026-10-17 19:51 UTCEchelonGraph re-scored
  15. 2026-10-17 19:51 UTCVendor advisory
  16. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  17. 2026-10-16 16:40 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  18. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  19. 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  20. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  21. 2026-10-12 16:41 UTCEchelonGraph re-scored
  22. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  23. 2026-10-11 20:16 UTCEchelonGraph re-scored
  24. 2026-10-11 17:09 UTCEchelonGraph re-scored
  25. 2026-10-11 17:09 UTCVendor advisory
  26. 2026-10-11 15:02 UTCEchelonGraph re-scored
  27. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  28. 2026-10-11 03:59 UTCEchelonGraph re-scored
  29. 2026-10-11 03:59 UTCVendor advisory
  30. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  31. 2026-10-10 01:35 UTCEchelonGraph re-scored
  32. 2026-10-10 01:35 UTCVendor advisory
  33. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  34. 2026-10-09 12:25 UTCVendor advisory
  35. 2026-10-08 23:12 UTCEchelonGraph re-scored
  36. 2026-10-08 23:12 UTCVendor advisory
  37. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  38. 2026-10-08 10:02 UTCEchelonGraph re-scored
  39. 2026-10-08 10:02 UTCVendor advisory
  40. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  41. 2026-10-07 20:53 UTCVendor advisory
  42. 2026-10-07 07:43 UTCVendor advisory
  43. 2026-10-06 18:33 UTCEchelonGraph re-scored▲ 1.60
  44. 2026-10-06 18:33 UTCVendor advisory
  45. 2026-10-06 18:31 UTCNVD updateCVSS v3 → 7.5 · severity → HIGH
  46. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  47. 2026-10-06 13:41 UTCEchelonGraph re-scored
  48. 2026-10-06 13:41 UTCVendor advisory
  49. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  50. 2026-10-05 14:41 UTCEchelonGraph re-scored
  51. 2026-10-05 14:41 UTCVendor advisory
  52. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  53. 2026-10-04 15:43 UTCVendor advisory
  54. 2026-10-03 16:44 UTCEchelonGraph re-scored
  55. 2026-10-03 16:44 UTCVendor advisory
  56. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  57. 2026-10-02 17:45 UTCEchelonGraph re-scored
  58. 2026-10-02 17:45 UTCVendor advisory
  59. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  60. 2026-10-01 18:46 UTCVendor advisory
  61. 2026-09-30 19:30 UTCEchelonGraph re-scored
  62. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  63. 2026-09-29 20:31 UTCEchelonGraph re-scored
  64. 2026-09-29 19:44 UTCEchelonGraph re-scored
  65. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  66. 2026-09-28 21:18 UTCEchelonGraph re-scored
  67. 2026-09-28 20:46 UTCEchelonGraph re-scoredFirst assessed: 5.9 MEDIUM
  68. 2026-09-28 20:46 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-102274?
CVE-2026-102274 is a high-severity vulnerability; its CVE record was published on September 28, 2026. PyJWT is a Python implementation of JSON Web Token standards. From 2.9.0 until 2.14.0, PyJWKSet does not catch the plain ValueError raised for malformed RSA JWK components by RSAAlgorithm.from_jwk in jwt/api_jwk.py. This occurs when a JWK Set contains a malformed RSA key alongside otherwise usable…
When was the CVE record for CVE-2026-102274 published?
The CVE record for CVE-2026-102274 was published on September 28, 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 6, 2026; the record at its source may have been updated since.
Is CVE-2026-102274 actively exploited?
CVE-2026-102274 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (46th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-102274?
CVE-2026-102274 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-102274?
A fix for CVE-2026-102274 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-102274 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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