CVE-2026-57231

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 82% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

Podman is a tool for managing OCI containers and pods. From 1.8.1 until 5.8.4, a container image that contains a environment variable with just a key and no value can trick podman into passing that variable from the host into the container. This is made worse by the fact that using an asterisk (*) will cause podman to pass all host variables into the container. So essentially a malicious image can exfiltrate all podman environment variables that are set in the session from where the container is launched. This vulnerability is fixed in 5.8.4 and 6.0.0.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
38(Track)
EG Risk 38/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
17.6%
KEV
Not listed

Published

June 26, 2026

Last Modified

July 6, 2026

Advisory Details (2)

Auto-updated Jun 26, 2026
Patch available. Sources: github_commit, github.
github Patch Available

Malformed Image can trick podman run into leaking host environment variables into the container · Advisory · podman-container-tools/podman · GitHub

https://github.com/podman-container-tools/podman/security/advisories/GHSA-4hq8-gpf5-8p68
github_commit

commit 6c431b73dbf8 (podman-container-tools/podman)

Fix landed in podman-container-tools/podman commit 6c431b73dbf8 — awaiting tagged release

https://github.com/podman-container-tools/podman/commit/6c431b73dbf8e4b20b778644d7a80caebdb75050

Vendor Advisories for CVE-2026-57231(5)

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

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatcontainer-tools:rhel8-8100020260709093628.afee755d2026-07-13redhat
redhatpodman-7:5.8.2-4.el10_22026-07-09redhat
redhatpodman-6:5.8.2-4.el9_82026-07-09redhat
redhatpodman-main-6.0.0-1.hum12026-06-25redhat

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.

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 68× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

  1. 2026-07-23 03:20 UTCEG score recompute
  2. 2026-07-22 14:08 UTCEPSS rescore
  3. 2026-07-20 17:08 UTCEPSS rescore
  4. 2026-07-19 14:31 UTCEPSS rescore
  5. 2026-07-19 14:31 UTCEPSS rescore
  6. 2026-07-19 02:29 UTCEPSS rescore
  7. 2026-07-18 10:04 UTCEPSS rescore
  8. 2026-07-16 18:49 UTCVendor advisory
  9. 2026-07-16 17:03 UTCEPSS rescore
  10. 2026-07-16 05:49 UTCVendor advisory
  11. 2026-07-15 16:57 UTCEPSS rescore
  12. 2026-07-15 16:57 UTCEPSS rescore
  13. 2026-07-15 16:49 UTCVendor advisory
  14. 2026-07-15 03:50 UTCVendor advisory
  15. 2026-07-15 02:00 UTCEPSS rescore
  16. 2026-07-15 02:00 UTCEPSS rescore
  17. 2026-07-14 14:50 UTCVendor advisory
  18. 2026-07-14 01:52 UTCVendor advisory
  19. 2026-07-13 22:31 UTCEPSS rescore
  20. 2026-07-13 12:52 UTCVendor advisory
  21. 2026-07-13 06:13 UTCEPSS rescore
  22. 2026-07-13 06:13 UTCEPSS rescore
  23. 2026-07-12 23:53 UTCVendor advisory
  24. 2026-07-12 10:54 UTCVendor advisory
  25. 2026-07-12 05:46 UTCEPSS rescore
Show 43 more
  1. 2026-07-11 21:54 UTCVendor advisory
  2. 2026-07-11 08:54 UTCVendor advisory
  3. 2026-07-11 08:27 UTCEPSS rescore
  4. 2026-07-11 08:27 UTCEPSS rescore
  5. 2026-07-10 19:54 UTCVendor advisory
  6. 2026-07-10 06:55 UTCVendor advisory
  7. 2026-07-09 19:10 UTCEPSS rescore
  8. 2026-07-09 19:10 UTCEPSS rescore
  9. 2026-07-09 17:54 UTCVendor advisory
  10. 2026-07-09 04:51 UTCVendor advisory
  11. 2026-07-08 15:52 UTCVendor advisory
  12. 2026-07-08 15:16 UTCEPSS rescore
  13. 2026-07-08 15:16 UTCEPSS rescore
  14. 2026-07-08 02:51 UTCVendor advisory
  15. 2026-07-07 13:49 UTCVendor advisory
  16. 2026-07-07 13:46 UTCEPSS rescore
  17. 2026-07-07 13:46 UTCEPSS rescore
  18. 2026-07-07 00:49 UTCVendor advisory
  19. 2026-07-06 16:27 UTCEPSS rescore
  20. 2026-07-06 16:27 UTCEPSS rescore
  21. 2026-07-06 11:50 UTCVendor advisory
  22. 2026-07-06 02:23 UTCEPSS rescore
  23. 2026-07-06 02:23 UTCEPSS rescore
  24. 2026-07-05 22:48 UTCVendor advisory
  25. 2026-07-05 09:49 UTCVendor advisory
  26. 2026-07-05 02:31 UTCEPSS rescore
  27. 2026-07-05 02:30 UTCEPSS rescore
  28. 2026-07-04 20:45 UTCVendor advisory
  29. 2026-07-04 07:46 UTCVendor advisory
  30. 2026-07-04 06:31 UTCEPSS rescore
  31. 2026-07-04 06:31 UTCEPSS rescore
  32. 2026-07-03 18:38 UTCVendor advisory
  33. 2026-07-03 05:39 UTCVendor advisory
  34. 2026-07-02 16:40 UTCVendor advisory
  35. 2026-07-02 03:40 UTCVendor advisory
  36. 2026-07-01 15:07 UTCEPSS rescore
  37. 2026-06-30 23:22 UTCEPSS rescore
  38. 2026-06-29 14:06 UTCEPSS rescore
  39. 2026-06-28 14:07 UTCEPSS rescore
  40. 2026-06-28 04:56 UTCEPSS rescore
  41. 2026-06-28 04:56 UTCEPSS rescore
  42. 2026-06-26 17:41 UTCEG score recompute
  43. 2026-06-26 17:41 UTCNVD updatefirst tracked

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Frequently asked(5)

What is CVE-2026-57231?
CVE-2026-57231 is a high vulnerability published on June 26, 2026. Podman is a tool for managing OCI containers and pods. From 1.8.1 until 5.8.4, a container image that contains a environment variable with just a key and no value can trick podman into passing that variable from the host into the container. This is made worse by the fact that using an asterisk (*)…
When was CVE-2026-57231 disclosed?
CVE-2026-57231 was first published in the National Vulnerability Database on June 26, 2026, with the most recent update on July 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57231 actively exploited?
CVE-2026-57231 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 17.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-57231?
CVE-2026-57231 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-57231?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57231, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-57231

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