CVE-2026-58053

CRITICALPre-NVD 9.99.9
EchelonGraph scoreMEDIUM confidence

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

Score 9.9 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-28. A secondary CVSS source baseline 9.9; 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 weekElevated
9.9EG
EchelonGraph verdictPlan mitigationRemediate 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: 9.9Exploit: No code on recordExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

The CVE record's CNA (VulnCheck) lists Gitea act_runner versions up to and including 0.262.0 as affected. No release containing a fix is confirmed on record.

Gitea act_runner with the Docker backend (through act 0.262.0) passes a workflow's container.options string to the Docker job container's HostConfig and, when configured with privileged: false, forces only the Privileged flag off while merging options such as --pid=host, --cap-add, and --security-opt unchanged. A user who can run a workflow on a Docker-backed runner can create a job container with host namespaces and broad capabilities and escape to the host as root despite privileged mode being disabled.

CVSS v3
9.9
EG Score
9.9CRITICALmedium confidence
EG Risk
61
EG Risk 61/100

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 (value × EchelonGraph’s weight)
Severity99% × 45%
The EG Score, 9.9 of 10.
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: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.4%
EPSS %ILE
36th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

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.

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

June 28, 2026

Last Modified

June 30, 2026

Advisory Details (2)

Auto-updated Oct 15, 2026
🔬 Proof of concept available. No fix on record yet.
Web page🟡 PoC Available

Gitea act_runner - Container Hardening Bypass via Workflow Container Options | Advisories | VulnCheck

https://www.vulncheck.com/advisories/gitea-act-runner-container-hardening-bypass-via-workflow-container-options
Web page🟡 PoC Available

exploitarium/gitea-act-runner-container-options-poc at main · bikini/exploitarium · GitHub

https://github.com/bikini/exploitarium/tree/main/gitea-act-runner-container-options-poc

Vendor Advisories for CVE-2026-58053(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 19× in last 7d / 43× 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.

Showing the most recent 100 of 439 refreshes on record for this CVE.

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. None are among the latest 100 rows. The 339 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-16 01:35 UTCEG score recompute
  2. 2026-10-16 01:35 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  3. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  4. 2026-10-14 21:08 UTCEG score recompute
  5. 2026-10-14 21:08 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  6. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  7. 2026-10-13 16:58 UTCEG score recompute
  8. 2026-10-13 16:58 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  9. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  10. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  11. 2026-10-12 15:32 UTCEG score recompute
  12. 2026-10-12 15:32 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  13. 2026-10-12 06:41 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  14. 2026-10-11 19:37 UTCEG score recompute
  15. 2026-10-11 16:52 UTCEG score recompute
  16. 2026-10-11 14:14 UTCEG score recompute
  17. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  18. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  19. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  20. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  21. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  22. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  23. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  24. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  25. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 36th percentile
Show 75 more
  1. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  2. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  3. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  4. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  5. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  6. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  7. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  8. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  9. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  10. 2026-09-23 11:56 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  11. 2026-09-23 07:39 UTCEG score recompute
  12. 2026-09-23 07:39 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  13. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  14. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  15. 2026-09-18 11:23 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  16. 2026-09-18 07:06 UTCEG score recompute
  17. 2026-09-18 07:06 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  18. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  19. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  20. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  21. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  22. 2026-09-14 09:31 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  23. 2026-09-14 05:13 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  24. 2026-09-14 00:55 UTCEG score recompute
  25. 2026-09-14 00:55 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  26. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  27. 2026-09-13 13:44 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  28. 2026-09-13 09:27 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  29. 2026-09-12 15:18 UTCEG score recompute
  30. 2026-09-12 15:18 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  31. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  32. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  33. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  34. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  35. 2026-09-06 14:48 UTCEG score recompute
  36. 2026-09-06 14:48 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  37. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.4% · 37th percentile
  38. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  39. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  40. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  41. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  42. 2026-08-30 23:29 UTCEG score recompute
  43. 2026-08-30 23:29 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  44. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  45. 2026-08-30 19:11 UTCEG score recompute
  46. 2026-08-30 19:11 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  47. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  48. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  49. 2026-08-28 03:38 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  50. 2026-08-27 22:51 UTCEG score recompute
  51. 2026-08-27 22:51 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  52. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  53. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  54. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  55. 2026-08-25 06:47 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  56. 2026-08-25 02:04 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  57. 2026-08-24 21:46 UTCEG score recompute
  58. 2026-08-24 21:46 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  59. 2026-08-24 12:44 UTCEG score recompute
  60. 2026-08-24 12:44 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  61. 2026-08-24 04:29 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  62. 2026-08-23 23:10 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  63. 2026-08-23 18:26 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  64. 2026-08-23 14:09 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  65. 2026-08-23 09:49 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  66. 2026-08-23 05:32 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  67. 2026-08-23 01:15 UTCEG score recompute
  68. 2026-08-23 01:15 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  69. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  70. 2026-08-22 20:57 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  71. 2026-08-22 13:34 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  72. 2026-08-22 09:15 UTCEG score recompute
  73. 2026-08-22 09:15 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9
  74. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  75. 2026-08-21 22:45 UTCGHSA enrichmentGHSA-8qf9-pc52-j7cm · GitHub severity CRITICAL · GitHub CVSS 9.9

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-58053?
CVE-2026-58053 is a critical-severity vulnerability; its CVE record was published on June 28, 2026. Gitea act_runner with the Docker backend (through act 0.262.0) passes a workflow's container.options string to the Docker job container's HostConfig and, when configured with privileged: false, forces only the Privileged flag off while merging options such as --pid=host, --cap-add, and…
When was CVE-2026-58053 made public?
CVE-2026-58053 was made public on June 23, 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 June 28, 2026. EchelonGraph's copy of the record carries a last-modified date of June 30, 2026; the record at its source may have been updated since.
Is CVE-2026-58053 actively exploited?
CVE-2026-58053 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (36th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-58053?
CVE-2026-58053 has a CVSS base score of 9.9 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-58053?
No fix for CVE-2026-58053 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's CNA (VulnCheck) lists Gitea act_runner versions up to and including 0.262.0 as affected. No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-58053 are linked in the Vendor Advisories panel on this page.

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