CVE-2026-41040 Denial of service in GROWI
Attackers can cause denial of service in GROWI by submitting crafted input strings that trigger excessive regular expression processing.
- 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-2026-41040?
CVE-2026-41040 is a high-severity denial of service vulnerability in GROWI, Inc. GROWI, published on 23 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
GROWI provided by GROWI, Inc. is vulnerable to a regular expression denial of service (ReDoS) via a crafted input string.
Weakness: CWE-1333
Which versions are affected by CVE-2026-41040?
How do I fix CVE-2026-41040?
No fix has been published for CVE-2026-41040 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-2026-41040 being exploited?
There is no known exploitation of CVE-2026-41040 in the wild and no public exploit code.
Sources
Also known as GHSA-vjmw-64m9-xqq5.