CVE-2026-59100

MEDIUMPre-NVD 5.05.0—
EchelonGraph scoreHIGH confidence

Score 5.0 from GitHub Security Advisory (severity: LOW) published 2026-07-02. a secondary CVSS source baseline 5.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
5.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.0Exploit: NoneExposed: 0

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

LobeChat through 2.2.9 contains a broken object level authorization vulnerability that allows authenticated attackers to access and modify other users' chat-group agent data by supplying arbitrary group identifiers. Attackers can invoke the getGroupAgents, updateAgentInGroup, and removeAgentsFromGroup operations without user-scoped predicates to read agent listings, modify agent roles and ordering, and remove agents from chat groups belonging to other users.

CVSS v3
5.0
EG Score
5.0(high)
EPSS
7.8%
KEV
Not listed

Published

July 2, 2026

Last Modified

July 6, 2026

References (4)

Vendor Advisories for CVE-2026-59100(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 17× in last 7d / 17× 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. 2026-07-06 18:40 UTCEG score recompute
  2. 2026-07-06 18:40 UTCGHSA enrichment
  3. 2026-07-06 16:41 UTCMITRE cvelistV5CVSS v4 → 2.3 · severity → MEDIUM
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 16:27 UTCEPSS rescore
  6. 2026-07-05 19:30 UTCEG score recompute
  7. 2026-07-05 19:30 UTCGHSA enrichment
  8. 2026-07-05 02:31 UTCEPSS rescore
  9. 2026-07-05 02:30 UTCEPSS rescore
  10. 2026-07-04 20:22 UTCEG score recompute
  11. 2026-07-04 20:22 UTCGHSA enrichment
  12. 2026-07-04 06:31 UTCEPSS rescore
  13. 2026-07-04 06:31 UTCEPSS rescore
  14. 2026-07-03 21:14 UTCEG score recompute
  15. 2026-07-03 21:14 UTCGHSA enrichment
  16. 2026-07-02 22:06 UTCEG score recompute
  17. 2026-07-02 22:06 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-59100?
CVE-2026-59100 is a medium vulnerability published on July 2, 2026. LobeChat through 2.2.9 contains a broken object level authorization vulnerability that allows authenticated attackers to access and modify other users' chat-group agent data by supplying arbitrary group identifiers. Attackers can invoke the getGroupAgents, updateAgentInGroup, and…
When was CVE-2026-59100 disclosed?
CVE-2026-59100 was first published in the National Vulnerability Database on July 2, 2026, with the most recent update on July 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-59100 actively exploited?
CVE-2026-59100 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 7.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-59100?
CVE-2026-59100 has a CVSS v3 base score of 5.0 (NVD).
How do I remediate CVE-2026-59100?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-59100, 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-2026-59100

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