CVE-2019-9826 phpBB Denial of Service
An attacker can cause a denial of service in phpBB via the fulltext search component, affecting forum availability.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-9826?
CVE-2019-9826 is a high-severity denial of service vulnerability in n/a, published on 2 May 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The fulltext search component in phpBB before 3.2.6 allows Denial of Service.
Weakness: CWE-20
Which versions are affected by CVE-2019-9826?
2 open source packages ship an affected version, including phpbb/phpbb. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
phpbb/phpbb Packagist | All versions | 3.2.6 |
phpbb/phpbb Packagist | All versions | 3.2.6 |
Products include Phpbb Phpbb.
How do I fix CVE-2019-9826?
Upgrade phpbb/phpbb to 3.2.6 or later.
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-2019-9826 being exploited?
There is no known exploitation of CVE-2019-9826 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2008-3224 Other in n/a
- CVE-2008-1766 Multiple unspecified vulnerabilities in phpBB before 3.0.1 have unknown impact and attack vectors, related to "two minor security-related bu
- CVE-2025-70810 Cross-site request forgery in n/a
- CVE-2001-1471 Code injection in n/a
- CVE-2026-29199 phpBB has Password Reset Link Poisoning via Host Header injection
Sources
Also known as DLA-1775-1, GHSA-6pgr-x867-h7jx, UBUNTU-CVE-2019-9826.