CVE-2026-85712

HIGHPre-NVD 8.88.8
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 8.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (31st 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
Elevated

Also known asEUVD-2026-118504 (ENISA EUVD)Source: ENISA EUVD

8.8EG
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: 0.4%CVSS: 8.8Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. Prior to 5.2.3, the shared project permission check trusted a caller-controlled team_id and let the teamOwner/teamAdmin branch continue without confirming that the target project belonged to that team. The vulnerable surface is project routes and related authorization checks that accepted user-controlled project identifiers. An authenticated user who is an owner or admin of their own team submits a victim project id together with the attacker's own team_id in the request body; default self-signup grants the required role on the user's own team. Authorization is evaluated against the attacker-selected team instead of the target project's team, and the update path mass-assigns the request body without a project field allow-list. The attacker needs a valid Chartbrew account, an owner or admin role on their own team, and a victim project identifier; requests without the body team_id trick are rejected. The attacker can re-parent the victim project into their own team, gain full read and write access, expose it publicly, remove password protection, and cause the victim to lose it; the shared delete route also permits cross-tenant deletion. This issue is fixed in version 5.2.3.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
56
EG Risk 56/100

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)
Severity88% × 45%
Impact severity (EG Severity): CVSS 8.8 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, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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
0.4%
EPSS %ILE
31st
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 (8.8): severity, escalated by confirmed exploitation. This CVE's 8.8 is its impact severity (EG Severity), not escalated.

EG Severity
8.8 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
0.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-08). 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, Track* at medium and Attend at high mission impact.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, 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, Track* at medium and Attend at high mission impact.

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 no (CISA Vulnrichment) · Technical impact total (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; 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 total (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

November 6, 2026

Last Modified

November 9, 2026

Advisory Details (3)

Auto-updated Nov 6, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit, github_release.
GitHub advisoryMentions a patch (unverified)🟡 PoC Available

Cross-tenant project takeover via body.team_id in /project routes · Advisory · chartbrew/chartbrew · GitHub

https://github.com/chartbrew/chartbrew/security/advisories/GHSA-6gv3-8wxh-6vfq
GitHub release Patch Available

v5.2.3

Patch available: chartbrew/chartbrew v5.2.3

https://github.com/chartbrew/chartbrew/releases/tag/v5.2.3
GitHub commit Patch Available

commit 9db1e57c9501 (chartbrew/chartbrew)

Patch available: chartbrew/chartbrew v5.2.3 (contains commit 9db1e57c9501)

https://github.com/chartbrew/chartbrew/commit/9db1e57c95014256ef0a7a8a4d60af6e7ade42a5

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 9× 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. 2026-11-13 16:57 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  2. 2026-11-12 16:34 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  3. 2026-11-11 16:41 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  4. 2026-11-10 16:45 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  5. 2026-11-09 16:36 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  6. 2026-11-09 14:28 UTCEchelonGraph re-scored
  7. 2026-11-09 13:41 UTCEchelonGraph re-scored
  8. 2026-11-09 13:30 UTCEchelonGraph re-scored
  9. 2026-11-08 16:41 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  10. 2026-11-07 16:40 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  11. 2026-11-06 22:04 UTCENISA EUVD ID recordedEUVD-2026-118504 · Source: ENISA EUVD
  12. 2026-11-06 21:27 UTCEchelonGraph re-scored
  13. 2026-11-06 21:16 UTCEchelonGraph re-scoredFirst assessed: 8.8 HIGH
  14. 2026-11-06 21:16 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-85712?
CVE-2026-85712 is a high-severity vulnerability; its CVE record was published on November 6, 2026. Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. Prior to 5.2.3, the shared project permission check trusted a caller-controlled team_id and let the teamOwner/teamAdmin branch continue without confirming that the target…
When was the CVE record for CVE-2026-85712 published?
The CVE record for CVE-2026-85712 was published on November 6, 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 November 9, 2026; the record at its source may have been updated since.
Is CVE-2026-85712 actively exploited?
CVE-2026-85712 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (31st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-85712?
CVE-2026-85712 has a CVSS base score of 8.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-85712?
A fix for CVE-2026-85712 is available: update to the fixed version the vendor names in its advisory.

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