CVE-2026-58578

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-02. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 6.5Exploit: Elevated riskExposed: 0

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

LobeChat before version 2.2.10-canary.15 contains a regular expression denial of service (ReDoS) vulnerability that allows authenticated attackers to block the Node.js event loop by supplying a catastrophic-backtracking pattern in a GitHub repository URL path during skill import. Attackers can craft a malicious basePath value containing unescaped regex metacharacters such as catastrophic-backtracking patterns, which are injected into a dynamically constructed regular expression in the findSkillMd function and executed synchronously against archive entries, denying service to all concurrent users for tens of seconds per request.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
45(Track)
EG Risk 45/100SSVC: 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
Severity65% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
43%
KEV
Not listed

Published

July 2, 2026

Last Modified

July 14, 2026

Advisory Details (4)

Auto-updated Jul 7, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit, github_pr.
generic

LobeHub < 2.2.10-canary.15 - Regular Expression Denial of Service in GitHub Skill Import | Advisories | VulnCheck

https://www.vulncheck.com/advisories/lobechat-canary-15-regular-expression-denial-of-service-in-github-skill-import
github_pr

🔒 fix(skill): prevent ReDoS in GitHub skill import basePath matching

Fix merged in lobehub/lobehub PR #16548 on 2026-07-01 — awaiting tagged release

https://github.com/lobehub/lobehub/pull/16548
generic

Issue · GitHub

https://github.com/lobehub/lobehub/issues/16494
github_commit

commit 349bbe326eb8 (lobehub/lobehub)

Fix landed in lobehub/lobehub commit 349bbe326eb8 — awaiting tagged release

https://github.com/lobehub/lobehub/commit/349bbe326eb8635d6d9c6a96d12702681ae3a84a

Vendor Advisories for CVE-2026-58578(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 16× in last 7d / 82× 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 145 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-58578?
CVE-2026-58578 is a medium vulnerability published on July 2, 2026. LobeChat before version 2.2.10-canary.15 contains a regular expression denial of service (ReDoS) vulnerability that allows authenticated attackers to block the Node.js event loop by supplying a catastrophic-backtracking pattern in a GitHub repository URL path during skill import. Attackers can…
When was CVE-2026-58578 disclosed?
CVE-2026-58578 was first published in the National Vulnerability Database on July 2, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-58578 actively exploited?
CVE-2026-58578 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 56.5% of all scored CVEs.
What is the CVSS score of CVE-2026-58578?
CVE-2026-58578 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-58578?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-58578, 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.

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