CVE-2026-50267

MEDIUMPre-NVD 4.74.7
EchelonGraph scoreMEDIUM confidence

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

Score 4.7 from GitHub Security Advisory (severity: MODERATE) published 2026-07-02. A secondary CVSS source baseline 4.7; 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-2026-37820 (ENISA EUVD) · GHSA-rxrh-4j9h-xgg9 (GitHub Security Advisories)Source: ENISA EUVD

4.7EG
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: <0.1%CVSS: 4.7Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Steeltoe is an open source project that provides a collection of libraries that helps users build cloud-native applications. In Steeltoe.Configuration.Abstractions 4.0.0 through 4.1.0, when MySQL or PostgreSQL service bindings from VCAP_SERVICES include TLS client credentials, the Connectors library writes those credentials to temporary files in Path.GetTempPath() using File.CreateText. On Linux, File.CreateText creates files with mode 0644 (world-readable) under the process umask, and the files are never deleted. The same key material is protected at mode 0400 in /proc//environ. Steeltoe.Configuration.Abstractions version 4.2.0 patches the issue. If an immediate upgrade is not possible, prevent other processes from running in the container under a different UID with access to /tmp.

CVSS v3
4.7
EG Score
4.7MEDIUMmedium confidence
EG Risk
21
EG Risk 21/100

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)
Severity47% × 45%
Impact severity (EG Severity): CVSS 4.7 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation<0.1% × 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
<0.1%
EPSS %ILE
below the 1st
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 (4.7): severity, escalated by confirmed exploitation. This CVE's 4.7 is its impact severity (EG Severity), not escalated.

EG Severity
4.7 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
<0.1% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-31). 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

June 17, 2026

Last Modified

October 26, 2026

Advisory Details (2)

Auto-updated Jun 17, 2026
Patch available. Sources: github_commit, github.
GitHub advisoryMentions a patch (unverified)

TLS private keys written to /tmp with default permissions, never deleted · Advisory · SteeltoeOSS/security-advisories · GitHub

https://github.com/SteeltoeOSS/security-advisories/security/advisories/GHSA-rxrh-4j9h-xgg9
GitHub commit Patch Available

commit 8dd97cc6c4b1 (SteeltoeOSS/Steeltoe)

Patch available: SteeltoeOSS/Steeltoe 4.2.0 (contains commit 8dd97cc6c4b1)

https://github.com/SteeltoeOSS/Steeltoe/commit/8dd97cc6c4b184121a4bd1f92f9ac16918433471

Vendor Advisories for CVE-2026-50267(1)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
nugetSteeltoe.Configuration.Abstractions @ 4.2.0 (fixes >= 4.0.0, <= 4.1.0)—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

(1 across 1 ecosystem)
NuGet(1)
PackageVulnerable rangeFix by version rangeDependents
Steeltoe.Configuration.Abstractions4.0.0, 4.1.0
  • 4.0.0 up to 4.2.0: fixed in 4.2.0
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 3× in last 7d / 23× 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.

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. 2 repeat rows among the latest 65 are merged into the row they repeat.

  1. 2026-11-01 07:46 UTCGHSA enrichmentGHSA-rxrh-4j9h-xgg9 · GitHub severity MODERATE · GitHub CVSS 4.7
  2. 2026-11-01 07:46 UTCEG score recompute
  3. 2026-10-28 16:32 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  4. 2026-10-26 11:29 UTCEG score recompute
  5. 2026-10-25 16:33 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  6. 2026-10-25 14:22 UTCEG score recompute
  7. 2026-10-22 22:56 UTCEG score recompute
  8. 2026-10-21 16:33 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  9. 2026-10-18 03:33 UTCEG score recompute
  10. 2026-10-15 16:32 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  11. 2026-10-14 16:33 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  12. 2026-10-13 16:34 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  13. 2026-10-12 16:34 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  14. 2026-10-12 15:59 UTCEG score recompute
  15. 2026-10-11 19:42 UTCEG score recompute
  16. 2026-10-11 16:57 UTCEG score recompute
  17. 2026-10-11 14:21 UTCEG score recompute
  18. 2026-10-11 13:49 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  19. 2026-10-10 20:00 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  20. 2026-10-08 17:12 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  21. 2026-10-07 23:48 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  22. 2026-10-05 17:43 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  23. 2026-10-04 23:22 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  24. 2026-10-03 14:26 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  25. 2026-10-02 17:56 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
Show 38 more
  1. 2026-10-02 16:40 UTCOSV refresh
  2. 2026-09-28 13:51 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  3. 2026-09-26 15:59 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  4. 2026-09-26 00:27 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  5. 2026-09-18 19:28 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  6. 2026-09-16 14:08 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  7. 2026-09-13 14:07 UTCEG score recompute
  8. 2026-09-11 14:53 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  9. 2026-08-30 21:13 UTCEG score recompute
  10. 2026-08-28 21:41 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  11. 2026-08-25 13:49 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  12. 2026-08-25 04:50 UTCEG score recompute
  13. 2026-08-23 03:49 UTCEG score recompute
  14. 2026-08-23 00:19 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  15. 2026-08-20 08:11 UTCEG score recompute
  16. 2026-08-19 17:04 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  17. 2026-08-15 23:25 UTCEG score recompute
  18. 2026-08-09 02:13 UTCEG score recompute
  19. 2026-08-08 16:37 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  20. 2026-08-07 03:01 UTCEG score recompute
  21. 2026-08-06 13:47 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  22. 2026-08-06 03:22 UTCEG score recompute
  23. 2026-08-05 19:17 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  24. 2026-08-05 03:47 UTCEG score recompute
  25. 2026-08-04 10:39 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  26. 2026-08-01 05:14 UTCEG score recompute
  27. 2026-08-01 04:16 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  28. 2026-07-31 03:54 UTCEG score recompute
  29. 2026-07-30 16:28 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  30. 2026-07-26 18:58 UTCEG score recompute
  31. 2026-07-24 14:18 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  32. 2026-07-23 03:18 UTCEG score recompute
  33. 2026-07-13 22:31 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  34. 2026-07-08 15:16 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  35. 2026-07-06 16:27 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  36. 2026-06-18 17:52 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  37. 2026-06-17 23:51 UTCEG score recompute
  38. 2026-06-17 23:51 UTCNVD updatefirst tracked

Frequently asked(5)

What is CVE-2026-50267?
CVE-2026-50267 is a medium-severity vulnerability; its CVE record was published on June 17, 2026. Steeltoe is an open source project that provides a collection of libraries that helps users build cloud-native applications. In Steeltoe.Configuration.Abstractions 4.0.0 through 4.1.0, when MySQL or PostgreSQL service bindings from VCAP_SERVICES include TLS client credentials, the Connectors…
When was the CVE record for CVE-2026-50267 published?
The CVE record for CVE-2026-50267 was published on June 17, 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 26, 2026; the record at its source may have been updated since.
Is CVE-2026-50267 actively exploited?
CVE-2026-50267 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a <0.1% probability of exploitation in the next 30 days (below the 1st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-50267?
CVE-2026-50267 has a CVSS base score of 4.7 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-50267?
A fix for CVE-2026-50267 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-50267 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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