CVE-2026-100600 ClawHub before 8c2de6c506 Quota Exhaustion via Anonymous API
Unauthenticated attackers can exhaust shared API quotas, denying service to legitimate users of the ClawHub backend.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-100600?
CVE-2026-100600 is a medium-severity denial of service vulnerability in openclaw clawhub, published on 26 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
ClawHub (the openclaw/clawhub application/backend) does not bind anonymous HTTP API requests to a trusted caller identity, so all direct anonymous API requests share a single default quota allowance. A remote, unauthenticated caller can drain that shared allowance and thereby deny or degrade API access for unrelated visitors. In addition, when the TRUST_FORWARDED_IPS option is enabled without an authenticated edge/proxy, clients can supply arbitrary forwarded IP headers to select quota identities of their choosing and evade rate limiting. The issue was confirmed at revision cbfee7343ddc867316dd9b3de6fa8856730f9f41; the complete historical affected range was not established. It is fixed in revision 8c2de6c506bb4efabe3f0c2ffb8370b9e23d4650 (PR #3684), where direct anonymous calls are redirected to the public API origin without consuming quota and forged identity assertions return HTTP 401. The npm CLI and OpenClaw runtime are separate products and are not affected.
Weakness: CWE-770
Which versions are affected by CVE-2026-100600?
How do I fix CVE-2026-100600?
No fix has been published for CVE-2026-100600 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-100600 being exploited?
There is no known exploitation of CVE-2026-100600 in the wild and no public exploit code.
Sources
Also known as GHSA-4c7q-g7xf-5628, GHSA-6pqv-3767-3c4m.