CVE-2026-115725

MEDIUMPre-NVD 4.24.2
EchelonGraph scoreHIGH confidence

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

Score 4.2 from GitHub Security Advisory (severity: LOW) published 2026-10-23. A secondary CVSS source baseline 4.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this week

Also known asEUVD-2026-108713 (ENISA EUVD) · GHSA-8r78-9655-cv92 (GitHub Security Advisories)Source: ENISA EUVD

4.2EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 4.2Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Chatwoot before 4.17.0 contains an authorization bypass vulnerability that allows authenticated agent bots to access other accounts by supplying a foreign contact inbox source_id. Attackers can call the conversations create endpoint with another account's source_id to create or retrieve conversations and post messages to that account's contacts.

CVSS v3
4.2
EG Score
4.2MEDIUMhigh confidence
EG Risk
19
EG Risk 19/100

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)
Severity42% × 45%
Impact severity (EG Severity): CVSS 4.2 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 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: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
15th
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 (4.2): severity, escalated by confirmed exploitation. This CVE's 4.2 is its impact severity (EG Severity), not escalated.

EG Severity
4.2 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-28). 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.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.

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

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.

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

October 23, 2026

Last Modified

October 29, 2026

Advisory Details (6)

Auto-updated Oct 29, 2026
Patch available. Sources: github_commit, github_pr, github_release.
Web page

Chatwoot before 4.17.0 Cross-Account Authorization Bypass via source_id | Advisories | VulnCheck

https://www.vulncheck.com/advisories/chatwoot-before-4.17.0-cross-account-authorization-bypass-via-source-id
GitHub release Patch Available

v4.17.0

Patch available: chatwoot/chatwoot v4.17.0

https://github.com/chatwoot/chatwoot/releases/tag/v4.17.0
GitHub pull request Patch Available

fix(security): scope conversation source_id lookup to the current account

Patch available: chatwoot/chatwoot v4.17.0 (PR #15521 merged 2026-08-19)

https://github.com/chatwoot/chatwoot/pull/15521
GitHub commit Patch Available

commit 2d173978fcd6 (chatwoot/chatwoot)

Patch available: chatwoot/chatwoot v4.17.0 (contains commit 2d173978fcd6)

https://github.com/chatwoot/chatwoot/commit/2d173978fcd64e6927b407c171095a3a7ceb03dd
Web page

chatwoot/app/policies/inbox_policy.rb at v4.16.2 · chatwoot/chatwoot · GitHub

https://github.com/chatwoot/chatwoot/blob/v4.16.2/app/policies/inbox_policy.rb#L22-L27
Web page

chatwoot/app/controllers/api/v1/accounts/conversations_controller.rb at v4.16.2 · chatwoot/chatwoot · GitHub

https://github.com/chatwoot/chatwoot/blob/v4.16.2/app/controllers/api/v1/accounts/conversations_controller.rb#L206-L213

Vendor Advisories for CVE-2026-115725(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 11× in last 7d / 20× 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. 2026-11-02 16:44 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  2. 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  3. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  4. 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  5. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  6. 2026-10-29 04:29 UTCEG score recompute
  7. 2026-10-29 04:29 UTCGHSA enrichmentGHSA-8r78-9655-cv92 · GitHub severity LOW · GitHub CVSS 4.2
  8. 2026-10-29 02:54 UTCEG score recompute
  9. 2026-10-29 02:54 UTCGHSA enrichmentGHSA-8r78-9655-cv92 · GitHub severity LOW · GitHub CVSS 4.2
  10. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  11. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  12. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  13. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  14. 2026-10-25 14:50 UTCEG score recompute
  15. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  16. 2026-10-23 20:06 UTCEG score recompute
  17. 2026-10-23 20:06 UTCGHSA enrichmentGHSA-8r78-9655-cv92 · GitHub severity LOW · GitHub CVSS 4.2
  18. 2026-10-23 12:26 UTCEG score recompute
  19. 2026-10-23 11:51 UTCEG score recomputeFirst assessed: 4.2 MEDIUM
  20. 2026-10-23 11:49 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-115725?
CVE-2026-115725 is a medium-severity vulnerability; its CVE record was published on October 23, 2026. Chatwoot before 4.17.0 contains an authorization bypass vulnerability that allows authenticated agent bots to access other accounts by supplying a foreign contact inbox source_id. Attackers can call the conversations create endpoint with another account's source_id to create or retrieve…
When was CVE-2026-115725 made public?
CVE-2026-115725 was made public on August 19, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on October 23, 2026. EchelonGraph's copy of the record carries a last-modified date of October 29, 2026; the record at its source may have been updated since.
Is CVE-2026-115725 actively exploited?
CVE-2026-115725 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (15th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-115725?
CVE-2026-115725 has a CVSS base score of 4.2 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-115725?
A fix for CVE-2026-115725 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-115725 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-115725

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