CVE-2026-90896

HIGHPre-NVD 8.28.2
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 8.2 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.7% (53rd 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-2026-78142 (ENISA EUVD) · GHSA-qfqr-55gf-4v3j (GitHub Security Advisories)Source: ENISA EUVD

8.2EG
EchelonGraph verdictPlan mitigationThe upstream fix is not in a release yet: until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule, then apply it (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 8.2Exploit: None knownExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

Missing Authentication for Critical Function (CWE-306) in the checkout session lookup handler (src/app/api/stripe/checkout_sessions/route.ts), exposed at GET /api/stripe/checkout_sessions, in MarcosCamara01 Ecommerce Template before commit 91e273c allows a remote, unauthenticated attacker holding a valid Stripe Checkout Session id (cs_...) to retrieve the full session object, including the buyer's name, email, phone, billing address, amount paid and internal userId, because the GET handler calls stripe.checkout.sessions.retrieve() and returns the result without checking for an authenticated session or session ownership. Sibling endpoints such as POST /api/stripe/payment already enforced authentication via auth.api.getSession(); this endpoint had no access control whatsoever. The session_id is exposed in the buyer's own browser URL after payment (success_url = /result?session_id={CHECKOUT_SESSION_ID}), so it leaks through Referer headers, analytics tools, server access logs and shared-machine browser history, resulting in disclosure of the buyer's personal data to an unauthenticated actor.

CVSS v3
8.2
EG Score
8.2HIGHmedium confidence
EG Risk
37
EG Risk 37/100

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)
Severity82% × 45%
Impact severity (EG Severity): CVSS 8.2 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.7% × 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: An upstream fix is merged but not yet in a tagged release. Until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule, then apply it.
EPSS PROB
0.7%
EPSS %ILE
53rd
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 (8.2): severity, escalated by confirmed exploitation. This CVE's 8.2 is its impact severity (EG Severity), not escalated.

EG Severity
8.2 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 2026-10-27). 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.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.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.

An upstream fix is merged but not yet in a tagged release. Until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule, then apply it.

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.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.

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 14, 2026

Last Modified

September 18, 2026

Advisory Details (2)

Auto-updated Sep 14, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
Web page

CVE-2026-90896 · Missing authentication in Ecommerce Template checkout session endpoint allows unauthenticated disclosure of buyer PII | Vulnerabilities published by Secur0

https://secur0.com/en/cna/cve-list/cve-2026-90896-missing-authentication-ecommerce-template-checkout-session-pii
GitHub commit

commit 91e273c69d97 (MarcosCamara01/ecommerce-template)

Fix landed in MarcosCamara01/ecommerce-template commit 91e273c69d97 — awaiting tagged release

https://github.com/MarcosCamara01/ecommerce-template/commit/91e273c69d976a3d205179e66e01fc399bfdd08b

Vendor Advisories for CVE-2026-90896(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 64× 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 99 of 134 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. 1 repeat row among the latest 100 is merged into the row it repeats. The 35 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 16:36 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  2. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  3. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  4. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  5. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  6. 2026-10-27 19:25 UTCEG score recompute
  7. 2026-10-27 19:25 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  8. 2026-10-27 16:33 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  9. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  10. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  11. 2026-10-25 13:51 UTCEG score recompute
  12. 2026-10-24 16:34 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  13. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  14. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  15. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  16. 2026-10-20 16:34 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  17. 2026-10-20 07:02 UTCEG score recompute
  18. 2026-10-20 07:02 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  19. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  20. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  21. 2026-10-18 03:00 UTCEG score recompute
  22. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  23. 2026-10-16 16:45 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  24. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  25. 2026-10-14 16:34 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
Show 74 more
  1. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  2. 2026-10-13 04:44 UTCEG score recompute
  3. 2026-10-13 04:43 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  4. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  5. 2026-10-12 14:46 UTCEG score recompute
  6. 2026-10-11 19:37 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  7. 2026-10-11 19:14 UTCEG score recompute
  8. 2026-10-11 16:30 UTCEG score recompute
  9. 2026-10-11 13:50 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  10. 2026-10-11 13:45 UTCEG score recompute
  11. 2026-10-11 06:35 UTCEG score recompute
  12. 2026-10-11 06:35 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  13. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  14. 2026-10-10 17:47 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  15. 2026-10-10 04:50 UTCEG score recompute
  16. 2026-10-10 04:50 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  17. 2026-10-09 20:08 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  18. 2026-10-09 16:01 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  19. 2026-10-08 22:45 UTCEG score recompute
  20. 2026-10-08 22:45 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  21. 2026-10-08 17:14 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  22. 2026-10-08 01:39 UTCEG score recompute
  23. 2026-10-08 01:39 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  24. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  25. 2026-10-07 12:54 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  26. 2026-10-06 23:57 UTCEG score recompute
  27. 2026-10-06 23:57 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  28. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  29. 2026-10-06 11:12 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  30. 2026-10-05 22:27 UTCEG score recompute
  31. 2026-10-05 22:27 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  32. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  33. 2026-10-05 09:34 UTCEG score recompute
  34. 2026-10-05 09:34 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  35. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  36. 2026-10-04 20:50 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  37. 2026-10-04 08:05 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  38. 2026-10-03 19:18 UTCEG score recompute
  39. 2026-10-03 19:18 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  40. 2026-10-03 06:34 UTCEG score recompute
  41. 2026-10-03 06:34 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  42. 2026-10-02 17:48 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  43. 2026-10-02 05:04 UTCEG score recompute
  44. 2026-10-02 05:04 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  45. 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  46. 2026-10-01 15:38 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  47. 2026-10-01 02:53 UTCEG score recompute
  48. 2026-10-01 02:53 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  49. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  50. 2026-09-30 14:09 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  51. 2026-09-30 01:23 UTCEG score recompute
  52. 2026-09-30 01:23 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  53. 2026-09-29 11:00 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  54. 2026-09-28 22:15 UTCEG score recompute
  55. 2026-09-28 22:15 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  56. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  57. 2026-09-28 09:22 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  58. 2026-09-27 20:37 UTCEG score recompute
  59. 2026-09-27 20:37 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  60. 2026-09-27 13:49 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  61. 2026-09-27 07:53 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  62. 2026-09-26 19:08 UTCEG score recompute
  63. 2026-09-26 19:08 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  64. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  65. 2026-09-26 06:09 UTCEG score recompute
  66. 2026-09-26 06:09 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  67. 2026-09-25 17:13 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  68. 2026-09-25 04:28 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  69. 2026-09-24 15:43 UTCEG score recompute
  70. 2026-09-24 15:43 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  71. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  72. 2026-09-24 02:58 UTCEG score recompute
  73. 2026-09-24 02:58 UTCGHSA enrichmentGHSA-qfqr-55gf-4v3j · GitHub severity HIGH
  74. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.4% · 38th percentile

Frequently asked(5)

What is CVE-2026-90896?
CVE-2026-90896 is a high-severity vulnerability; its CVE record was published on September 14, 2026. Missing Authentication for Critical Function (CWE-306) in the checkout session lookup handler (src/app/api/stripe/checkout_sessions/route.ts), exposed at GET /api/stripe/checkout_sessions, in MarcosCamara01 Ecommerce Template before commit 91e273c allows a remote, unauthenticated attacker holding a…
When was the CVE record for CVE-2026-90896 published?
The CVE record for CVE-2026-90896 was published on September 14, 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 18, 2026; the record at its source may have been updated since.
Is CVE-2026-90896 actively exploited?
CVE-2026-90896 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (53rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-90896?
CVE-2026-90896 has a CVSS base score of 8.2 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-90896?
An upstream fix for CVE-2026-90896 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-90896 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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