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-2020-27197

32
FAUCET Score

CVE-2020-27197 is a critical Server-Side Request Forgery (SSRF) vulnerability affecting TAXII libtaxii through version 1.1.117, including its use in EclecticIQ OpenTAXII through 0.2.0. This flaw allows an attacker to initiate arbitrary network requests from the server by injecting an "http://" substring into the parse method, even when network access is explicitly disabled for the XML parser. With a CVSS score of 9.8 (CRITICAL), the vulnerability is easily exploitable over the network with low attack complexity, potentially leading to full compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion with 10 mentions, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.2.0CPE matchmatch criteria
cpe:2.3:a:eclecticiq:opentaxii:*:*:*:*:*:*:*:*
<= 1.1.117CPE matchmatch criteria
cpe:2.3:a:libtaxii_project:libtaxii:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.31%
Probability of exploitation in next 30 days
EPSS Percentile
81.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0231 is in the 71st percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

pippatch availablevia ghsa
Product: libtaxiiFixed in: 1.1.118

Vendor Advisories (1)

pipGHSA-836c-xg97-8p4hcritical

libtaxii Server-Side Request Forgery vulnerability

Apr 30, 2021

References

packetstormsecurity.com / files/159662/Libtaxii-1.1.117-OpenTaxi-0.2.0-Server-Side-Request-Forgery.html
ExploitThird Party Advisory
github.com / eclecticiq/OpenTAXII/issues/176
ExploitThird Party Advisory
github.com / TAXIIProject/libtaxii/issues/246
ExploitThird Party Advisory