CVE-2026-59100: 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 sup
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.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-59100
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-591000.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 8% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-59100 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for LobeChat
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- mediumCVE-2026-59098: LobeChat through 2.2.9 contains a broken access control vulnerability in the retrieval-augment…nvd · 2026-07-02
- highCVE-2026-59095: LobeChat before 2.2.10-canary.18 contains a server-side request forgery vulnerability that all…nvd · 2026-07-02
- mediumCVE-2026-58580: LobeChat through 2.2.9 server-database deployments are vulnerable to broken object-level autho…nvd · 2026-07-02
- mediumCVE-2026-58578: LobeChat before version 2.2.10-canary.15 contains a regular expression denial of service (ReDo…nvd · 2026-07-02
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