Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2023-45813

21
FAUCET Score

CVE-2023-45813 affects Torbot, an open-source Tor network intelligence tool, specifically versions prior to 4.0.0. The vulnerability stems from an exponential complexity regular expression used in the torbot.modules.validators.validate_link function, which can be triggered by a specially crafted URL. This allows an unauthenticated attacker to cause a Denial of Service (DoS) by crashing the application. Rated 7.5 HIGH on the CVSS scale, this vulnerability has a low attack complexity and requires no user interaction. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.0.0CPE matchmatch criteria
cpe:2.3:a:torbot_project:torbot:*:*:*:*:*:*:*:*
0.11.0CPE matchmatch criteria
cpe:2.3:a:validators_project:validators:0.11.0:*:*:*:*:python:*:*
0.20.0CPE matchmatch criteria
cpe:2.3:a:validators_project:validators:0.20.0:*:*:*:*:python:*:*

CVSS Data

CVSS version used by this source: 3.1

4.6MEDIUM

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
0.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.80%
Probability of exploitation in next 30 days
EPSS Percentile
52.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0080 is in the 28th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
pippatch availablevia ghsa
Product: torbotFixed in: 4.0.0

Vendor Advisories (1)

pipGHSA-72qw-p7hh-m3ffmedium

TorBot vulnerable to Inefficient Regular Expression Complexity in validate_link

Oct 19, 2023

References

github.com / DedSecInside/TorBot/commit/ef6e06bc7785355b1701d5524eb4550441086ac4
Patch
github.com / DedSecInside/TorBot/security/advisories/GHSA-72qw-p7hh-m3ff
ExploitVendor Advisory