CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2023-45813
High (7.5). EPSS 1.0% chance of exploitation in the next 30 days. Fixed in torbot 4.0.0.
Torbot is an open source tor network intelligence tool. In affected versions the `torbot.modules.validators.validate_link function` uses the python-validators URL validation regex. This particular regular expression has an exponential complexity which allows an attacker to cause an application crash using a well-crafted argument. An attacker can use a well-crafted URL argument to exploit the vulnerability in the regular expression and cause a Denial of Service on the system. The validators file has been removed in version 4.0.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Severity
- EPSS
- 1.0% chance of exploitation in the next 30 days; higher than 61% of CVEs (scores of 2026-10-31)
- CWE
- CWE-1333
- Published
- Modified
- Record from
- the NVD, synced
Affected
- torbot_project:torbot
- validators_project:validators
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-72qw-p7hh-m3ff | PyPI | torbot | <4.0.0 | 4.0.0 |
| PYSEC-2026-1969 | PyPI | torbot | <4.0.0 | 4.0.0 |
References
- https://github.com/DedSecInside/TorBot/commit/ef6e06bc7785355b1701d5524eb4550441086ac4
- https://github.com/DedSecInside/TorBot/security/advisories/GHSA-72qw-p7hh-m3ff
- https://github.com/DedSecInside/TorBot/commit/ef6e06bc7785355b1701d5524eb4550441086ac4
- https://github.com/DedSecInside/TorBot/security/advisories/GHSA-72qw-p7hh-m3ff