CVE-2026-4802

HIGHPre-NVD 8.08.0—
EchelonGraph scoreMEDIUM confidence

Score 8.0 from GitHub Security Advisory (severity: HIGH) published 2026-05-11. a secondary CVSS source baseline 8.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Elevated
8.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.0Exploit: Elevated riskExposed: 0

A fix is available — apply it.

A flaw was found in Cockpit. This vulnerability allows a remote attacker to achieve arbitrary command execution on the host by exploiting unsanitized user-controlled parameters within crafted links in the system logs user interface (UI). An attacker can inject shell metacharacters and command substitutions into these parameters, leading to the execution of arbitrary shell commands on the affected system. This could result in a complete system compromise.

CVSS v3
8.0
EG Score
8.0(medium)
EG Risk
52(Track)
EG Risk 52/100SSVC: 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
Severity80% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
61%
KEV
Not listed

Published

May 11, 2026

Last Modified

July 15, 2026

Advisory Details (3)

Auto-updated May 11, 2026
Patch available. Sources: redhat.
generic

cockpit/pkg/systemd/logsJournal.jsx at e204cd130cba38db9be959c7f251472e68db3a0a · cockpit-project/cockpit · GitHub

https://github.com/cockpit-project/cockpit/blob/e204cd130/pkg/systemd/logsJournal.jsx#L206-L210
redhat

2451155 – (CVE-2026-4802) CVE-2026-4802 cockpit: Cockpit: Arbitrary command execution via crafted links in system logs UI

https://bugzilla.redhat.com/show_bug.cgi?id=2451155
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-4802

Vendor Advisories for CVE-2026-4802(8)

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

Patch Availability(10)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatcockpit-0:334.3-1.el9_62026-05-28redhat
redhatcockpit-0:310.8-1.el8_102026-05-28redhat
redhatcockpit-0:311.3-1.el9_42026-05-28redhat
redhatcockpit-0:356.2-1.el10_22026-05-28redhat
redhatcockpit-0:286.3-1.el9_22026-05-27redhat
redhatcockpit-0:334.2-1.el10_02026-05-27redhat
redhatcockpit-0:264.3-1.el8_62026-05-27redhat
redhatcockpit-0:264.3-1.el9_02026-05-27redhat
redhatcockpit-0:286.2-1.el8_82026-05-27redhat
redhatcockpit-0:356.2-1.el9_82026-05-27redhat

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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
cockpit239-1 ... 365-1~bpo13+1 (182 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
cockpit287-1 ... 365-1~bpo13+1 (124 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
cockpit337-1 ... 365-1~bpo13+1 (34 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
cockpit337-1 ... 362-1~bpo13+1 (30 versions)362-1—

Weakness Classification(1)

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

Additional Vendor Advisories

(3)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 6× in last 7d / 75× 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.

Showing the most recent 100 of 259 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoChakaioffsec/CVE-2026-4802
    First seen May 11, 2026

    Arbitrary command execution on Cockpit

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-4802?
CVE-2026-4802 is a high vulnerability published on May 11, 2026. A flaw was found in Cockpit. This vulnerability allows a remote attacker to achieve arbitrary command execution on the host by exploiting unsanitized user-controlled parameters within crafted links in the system logs user interface (UI). An attacker can inject shell metacharacters and command…
When was CVE-2026-4802 disclosed?
CVE-2026-4802 was first published in the National Vulnerability Database on May 11, 2026, with the most recent update on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-4802 actively exploited?
CVE-2026-4802 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 39.0% of all scored CVEs.
What is the CVSS score of CVE-2026-4802?
CVE-2026-4802 has a CVSS v3 base score of 8.0 (NVD).
How do I remediate CVE-2026-4802?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-4802, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-4802

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