CVE-2026-55249

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 79% 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
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 0

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

@rtk-ai/rtk-rewrite transparently rewrites shell commands executed via OpenClaw's exec tool to their RTK equivalents. In 1.0.0, the @rtk-ai/rtk-rewrite OpenClaw plugin passes attacker-controlled input directly into a shell-backed execSync() template string without shell-safe escaping. JSON.stringify() wraps the value in double quotes and escapes inner double-quotes and backslashes, but leaves $() and backtick shell metacharacters untouched. Because execSync delegates execution to /bin/sh -c, the shell expands $(...) substitutions even inside double-quoted strings, causing the injected subcommand to execute before rtk is invoked. An attacker who can influence the exec tool's command parameter (e.g., via an LLM agent prompt or gateway/tool-call input) achieves arbitrary OS command execution with the privileges of the plugin/gateway process.

CVSS v3
8.8
EG Score
8.8(medium)
EPSS
20.7%
KEV
Not listed

Published

June 23, 2026

Last Modified

July 1, 2026

Advisory Details (1)

Auto-updated Jun 23, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

OpenClaw Rewrite Plugin Command Injection via execSync Template String · Advisory · rtk-ai/rtk · GitHub

https://github.com/rtk-ai/rtk/security/advisories/GHSA-fqgj-m2gp-mr3q

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 27× in last 7d / 71× 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. 2026-07-15 23:36 UTCEG score recompute
  2. 2026-07-15 16:57 UTCEPSS rescore
  3. 2026-07-15 16:57 UTCEPSS rescore
  4. 2026-07-15 12:07 UTCEG score recompute
  5. 2026-07-15 02:00 UTCEPSS rescore
  6. 2026-07-15 02:00 UTCEPSS rescore
  7. 2026-07-15 00:13 UTCEG score recompute
  8. 2026-07-14 12:41 UTCEG score recompute
  9. 2026-07-14 01:12 UTCEG score recompute
  10. 2026-07-13 22:31 UTCEPSS rescore
  11. 2026-07-13 13:44 UTCEG score recompute
  12. 2026-07-13 06:13 UTCEPSS rescore
  13. 2026-07-13 06:13 UTCEPSS rescore
  14. 2026-07-13 02:14 UTCEG score recompute
  15. 2026-07-12 14:45 UTCEG score recompute
  16. 2026-07-12 05:46 UTCEPSS rescore
  17. 2026-07-12 03:16 UTCEG score recompute
  18. 2026-07-11 15:47 UTCEG score recompute
  19. 2026-07-11 08:27 UTCEPSS rescore
  20. 2026-07-11 08:27 UTCEPSS rescore
  21. 2026-07-11 04:18 UTCEG score recompute
  22. 2026-07-10 16:49 UTCEG score recompute
  23. 2026-07-10 05:20 UTCEG score recompute
  24. 2026-07-09 19:10 UTCEPSS rescore
  25. 2026-07-09 19:10 UTCEPSS rescore
Show 46 more
  1. 2026-07-09 17:47 UTCEG score recompute
  2. 2026-07-09 06:18 UTCEG score recompute
  3. 2026-07-08 18:50 UTCEG score recompute
  4. 2026-07-08 15:16 UTCEPSS rescore
  5. 2026-07-08 15:16 UTCEPSS rescore
  6. 2026-07-08 07:18 UTCEG score recompute
  7. 2026-07-07 19:38 UTCEG score recompute
  8. 2026-07-07 13:46 UTCEPSS rescore
  9. 2026-07-07 13:46 UTCEPSS rescore
  10. 2026-07-07 07:43 UTCEG score recompute
  11. 2026-07-06 20:05 UTCEG score recompute
  12. 2026-07-06 16:27 UTCEPSS rescore
  13. 2026-07-06 16:27 UTCEPSS rescore
  14. 2026-07-06 08:12 UTCEG score recompute
  15. 2026-07-06 02:23 UTCEPSS rescore
  16. 2026-07-06 02:23 UTCEPSS rescore
  17. 2026-07-05 20:44 UTCEG score recompute
  18. 2026-07-05 09:14 UTCEG score recompute
  19. 2026-07-05 02:31 UTCEPSS rescore
  20. 2026-07-05 02:30 UTCEPSS rescore
  21. 2026-07-04 21:36 UTCEG score recompute
  22. 2026-07-04 10:08 UTCEG score recompute
  23. 2026-07-03 22:39 UTCEG score recompute
  24. 2026-07-03 11:10 UTCEG score recompute
  25. 2026-07-02 23:41 UTCEG score recompute
  26. 2026-07-02 12:13 UTCEG score recompute▲ 2.50
  27. 2026-07-01 19:07 UTCNVD updateCVSS v3 → 8.8 · severity → HIGH
  28. 2026-07-01 15:07 UTCEPSS rescore
  29. 2026-07-01 13:06 UTCEG score recompute
  30. 2026-06-30 14:00 UTCEG score recompute
  31. 2026-06-29 14:51 UTCEG score recompute
  32. 2026-06-29 14:06 UTCEPSS rescore
  33. 2026-06-29 14:06 UTCEPSS rescore
  34. 2026-06-28 15:44 UTCEG score recompute
  35. 2026-06-28 14:07 UTCEPSS rescore
  36. 2026-06-28 04:56 UTCEPSS rescore
  37. 2026-06-28 04:56 UTCEPSS rescore
  38. 2026-06-27 16:37 UTCEG score recompute
  39. 2026-06-27 03:08 UTCEPSS rescore
  40. 2026-06-26 17:30 UTCEG score recompute
  41. 2026-06-25 18:25 UTCEG score recompute
  42. 2026-06-25 13:49 UTCEPSS rescore
  43. 2026-06-24 19:19 UTCEG score recompute
  44. 2026-06-24 14:05 UTCEPSS rescore
  45. 2026-06-23 19:34 UTCEG score recompute
  46. 2026-06-23 19:32 UTCNVD updatefirst tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-55249?
CVE-2026-55249 is a high vulnerability published on June 23, 2026. @rtk-ai/rtk-rewrite transparently rewrites shell commands executed via OpenClaw's exec tool to their RTK equivalents. In 1.0.0, the @rtk-ai/rtk-rewrite OpenClaw plugin passes attacker-controlled input directly into a shell-backed execSync() template string without shell-safe escaping.…
When was CVE-2026-55249 disclosed?
CVE-2026-55249 was first published in the National Vulnerability Database on June 23, 2026, with the most recent update on July 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-55249 actively exploited?
CVE-2026-55249 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 20.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-55249?
CVE-2026-55249 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-55249?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-55249, 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-2026-55249

Explore →

Is Your Infrastructure Affected by CVE-2026-55249?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs