CVE-2026-22812

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 17.0%, top 3% 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, nvd
Elevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 17%CVSS: 8.8Exploit: Elevated riskExposed: 0

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

OpenCode is an open source AI coding agent. Prior to 1.0.216, OpenCode automatically starts an unauthenticated HTTP server that allows any local process (or any website via permissive CORS) to execute arbitrary shell commands with the user's privileges. This vulnerability is fixed in 1.0.216.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
56(Track*)
EG Risk 56/100SSVC: 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
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
17%
EPSS %ILE
97%
KEV
Not listed

Published

January 12, 2026

Last Modified

June 17, 2026

Advisory Details (1)

Auto-updated Aug 6, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Unauthenticated HTTP Server Allows Arbitrary Command Execution · Advisory · anomalyco/opencode · GitHub

https://github.com/anomalyco/opencode/security/advisories/GHSA-vxw4-wv6m-9hhh

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
opencode-ai—1.0.216—

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 24× 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 140 total refreshes for this CVE.

  1. 2026-09-19 05:00 UTCOSV refresh
  2. 2026-09-18 19:27 UTCEPSS rescore
  3. 2026-09-16 14:07 UTCEPSS rescore
  4. 2026-09-16 05:15 UTCEPSS rescore
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  15. 2026-08-31 08:25 UTCOSV refresh
  16. 2026-08-30 19:17 UTCEPSS rescore
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  24. 2026-08-20 22:55 UTCEPSS rescore
  25. 2026-08-19 17:03 UTCEPSS rescore
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  1. 2026-08-18 13:48 UTCEPSS rescore
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  3. 2026-08-16 14:56 UTCEPSS rescore
  4. 2026-08-16 02:14 UTCEPSS rescore
  5. 2026-08-15 01:30 UTCEPSS rescore
  6. 2026-08-14 14:52 UTCEG score recompute
  7. 2026-08-13 22:00 UTCEPSS rescore
  8. 2026-08-12 13:50 UTCEPSS rescore
  9. 2026-08-11 13:42 UTCEPSS rescore
  10. 2026-08-09 20:28 UTCEG score recompute
  11. 2026-08-08 16:37 UTCEPSS rescore
  12. 2026-08-08 01:00 UTCEG score recompute
  13. 2026-08-06 13:46 UTCEPSS rescore
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  15. 2026-08-05 19:17 UTCEPSS rescore
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  24. 2026-07-23 14:18 UTCEPSS rescore
  25. 2026-07-23 14:18 UTCEPSS rescore
  26. 2026-07-23 10:49 UTCOSV refresh
  27. 2026-07-23 03:06 UTCEG score recompute
  28. 2026-07-22 14:08 UTCEPSS rescore
  29. 2026-07-21 15:24 UTCEPSS rescore
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  31. 2026-07-20 17:08 UTCEPSS rescore
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  44. 2026-07-13 22:30 UTCEPSS rescore
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  49. 2026-07-11 08:27 UTCEPSS rescore
  50. 2026-07-09 19:10 UTCEPSS rescore
  51. 2026-07-08 15:15 UTCEPSS rescore
  52. 2026-07-08 15:15 UTCEPSS rescore
  53. 2026-07-07 13:46 UTCEPSS rescore
  54. 2026-07-06 06:02 UTCOSV refresh
  55. 2026-07-05 02:30 UTCEPSS rescore
  56. 2026-07-01 15:06 UTCEPSS rescore
  57. 2026-07-01 15:06 UTCEPSS rescore
  58. 2026-06-30 23:22 UTCEPSS rescore
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  60. 2026-06-29 14:06 UTCEPSS rescore
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  63. 2026-06-28 04:56 UTCEPSS rescore
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  65. 2026-06-27 03:08 UTCEPSS rescore
  66. 2026-06-25 13:49 UTCEPSS rescore
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  68. 2026-06-24 14:05 UTCEPSS rescore
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  70. 2026-06-23 21:33 UTCEPSS rescore
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  72. 2026-06-22 14:25 UTCEPSS rescore
  73. 2026-06-22 14:25 UTCEPSS rescore
  74. 2026-06-21 14:56 UTCEPSS rescore
  75. 2026-06-21 14:56 UTCEPSS rescore

Publicly available exploits

(4 references)

Working exploit code is in the public domain (3 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCbarrersoftware/opencode-secure
    First seen Jan 19, 2026

    Security-hardened fork of OpenCode - Fixes CVE-2026-22812 (CVSS 8.8 RCE) that upstream refuses to patch

    Open source ↗
  • GitHub PoC0xgh057r3c0n/CVE-2026-22812
    First seen Jan 19, 2026

    OpenCode < v1.0.216 - Unauthenticated RCE

    Open source ↗
  • GitHub PoCrohmatariow/CVE-2026-22812-exploit
    First seen Jan 16, 2026
    Open source ↗
  • Nucleihttp/cves/2026/CVE-2026-22812.yaml
    First seen Jan 1, 2026

    OpenCode < 1.0.216 - Unauthenticated Remote Code Execution

    Open source ↗

Frequently asked(5)

What is CVE-2026-22812?
CVE-2026-22812 is a high vulnerability published on January 12, 2026. OpenCode is an open source AI coding agent. Prior to 1.0.216, OpenCode automatically starts an unauthenticated HTTP server that allows any local process (or any website via permissive CORS) to execute arbitrary shell commands with the user's privileges. This vulnerability is fixed in 1.0.216.
When was CVE-2026-22812 disclosed?
CVE-2026-22812 was first published in the National Vulnerability Database on January 12, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-22812 actively exploited?
CVE-2026-22812 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 17% probability of exploitation in the next 30 days, which ranks it in the top 3.1% of all scored CVEs.
What is the CVSS score of CVE-2026-22812?
CVE-2026-22812 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-22812?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-22812, 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

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