CVE-2026-114139

CRITICALPre-NVD 9.19.1
EchelonGraph scoreMEDIUM confidence

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

This critical-severity CVE scores 9.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (33rd 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
9.1EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 9.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Sentry-Javascript is an official Sentry SDKs for JavaScript. From 9.36.0 until 9.47.2, 10.75.2, and 11.0.0-rc.1, the webpack integration for @sentry/nextjs skips application middleware for every request path under a configured tunnelRoute, while the tunnel rewrite serves only the exact tunnel path with valid o and p query parameters. When an application route directly collides with the tunnel path or a root dynamic segment resolves under it, an unauthenticated request can reach that route without middleware authorization. Exploitation requires tunnelRoute, a webpack build, a colliding route, and middleware being the only authorization control. This issue is fixed in versions 9.47.2, 10.75.2, and 11.0.0-rc.1.

CVSS v3
9.1
EG Score
9.1CRITICALmedium confidence
EG Risk
41
EG Risk 41/100

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.
Exploitation0.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CVSS v4.0 confidentiality and integrity impact both High). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from 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
0.4%
EPSS %ILE
33rd
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.a secondary CVSS source · CVSS v3.0 or v3.1
EG Likelihood
0.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-22). 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: 14 days if the affected system is publicly exposed; Fix on system upgrade 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; Track* at high (mission-essential systems).

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

Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CVSS v4.0 confidentiality and integrity impact both High). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from 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; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CVSS v4.0 confidentiality and integrity impact both High). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” 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

October 21, 2026

Last Modified

October 22, 2026

Advisory Details (10)

Auto-updated Oct 21, 2026
Patch available. Sources: github, github_pr, github_commit, github_release.
GitHub release Patch Available

9.47.2

Patch available: getsentry/sentry-javascript 9.47.2

https://github.com/getsentry/sentry-javascript/releases/tag/9.47.2
GitHub release Patch Available

11.0.0-rc.1

Patch available: getsentry/sentry-javascript 11.0.0-rc.1 (pre-release)

https://github.com/getsentry/sentry-javascript/releases/tag/11.0.0-rc.1
GitHub release Patch Available

10.75.2

Patch available: getsentry/sentry-javascript 10.75.2

https://github.com/getsentry/sentry-javascript/releases/tag/10.75.2
GitHub commit

commit d525a2f6015b (getsentry/sentry-javascript)

Fix landed in getsentry/sentry-javascript commit d525a2f6015b — awaiting tagged release

https://github.com/getsentry/sentry-javascript/commit/d525a2f6015b47384bc139c30d58e0d5435d52e5
GitHub commit

commit c122aac4f295 (getsentry/sentry-javascript)

Fix landed in getsentry/sentry-javascript commit c122aac4f295 — awaiting tagged release

https://github.com/getsentry/sentry-javascript/commit/c122aac4f29541eb6da494296822c91eab3cf5ae
GitHub commit

commit 878b685c85dc (getsentry/sentry-javascript)

Fix landed in getsentry/sentry-javascript commit 878b685c85dc — awaiting tagged release

https://github.com/getsentry/sentry-javascript/commit/878b685c85dc12045e47e1932c96f5381d7ac532
GitHub pull request

fix(v9/nextjs): Align tunnel request matching in middleware with tunnel rewrite

Fix merged in getsentry/sentry-javascript PR #24760 on 2026-09-28 — awaiting tagged release

https://github.com/getsentry/sentry-javascript/pull/24760
GitHub pull request

fix(v10/nextjs): Align tunnel request matching in middleware with tunnel rewrite

Fix merged in getsentry/sentry-javascript PR #24565 on 2026-09-21 — awaiting tagged release

https://github.com/getsentry/sentry-javascript/pull/24565
GitHub pull request

fix(nextjs): Align tunnel request matching in middleware with tunnel rewrite

Fix merged in getsentry/sentry-javascript PR #24499 on 2026-09-18 — awaiting tagged release

https://github.com/getsentry/sentry-javascript/pull/24499
GitHub advisoryMentions a patch (unverified)

Middleware Bypass when using Tunnel route · Advisory · getsentry/sentry-javascript · GitHub

https://github.com/getsentry/sentry-javascript/security/advisories/GHSA-mchm-gjx6-7h55

Vendor Advisories for CVE-2026-114139(1)

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

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
@sentry/nextjs—
  • 9.36.0 up to 9.47.2: fixed in 9.47.2
  • 10.0.0-alpha.0 up to 10.75.2: fixed in 10.75.2
  • 11.0.0-alpha.0 up to 11.0.0-rc.1: fixed in 11.0.0-rc.1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 6× 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.

  1. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  2. 2026-10-22 17:47 UTCEG score recompute
  3. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  4. 2026-10-21 21:26 UTCEG score recompute
  5. 2026-10-21 20:26 UTCEG score recomputeFirst assessed: 9.1 CRITICAL
  6. 2026-10-21 20:25 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-114139?
CVE-2026-114139 is a critical-severity vulnerability; its CVE record was published on October 21, 2026. Sentry-Javascript is an official Sentry SDKs for JavaScript. From 9.36.0 until 9.47.2, 10.75.2, and 11.0.0-rc.1, the webpack integration for @sentry/nextjs skips application middleware for every request path under a configured tunnelRoute, while the tunnel rewrite serves only the exact tunnel path…
When was the CVE record for CVE-2026-114139 published?
The CVE record for CVE-2026-114139 was published on October 21, 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 22, 2026; the record at its source may have been updated since.
Is CVE-2026-114139 actively exploited?
CVE-2026-114139 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (33rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-114139?
CVE-2026-114139 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-2026-114139?
A fix for CVE-2026-114139 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-114139 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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