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No exploitation reportedFix available

CVE-2020-27197

No exploitation reported by the sources we read.

  • Published2020-10-17
  • Fixed in1.1.118
  • WeaknessCWE-918

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

TAXII libtaxii through 1.1.117, as used in EclecticIQ OpenTAXII through 0.2.0 and other products, allows SSRF via an initial http:// substring to the parse method, even when the no_network setting is used for the XML parser. NOTE: the vendor points out that the parse method "wraps the lxml library" and that this may be an issue to "raise ... to the lxml group.

Timeline

dates in UTC
  1. 2020-10-1720:15CVE publishedNVD

Versions per branch

OSV · NVD
libtaxii
BranchAffectedFixed in
1.1< 1.1.1181.1.118
Eclecticiq opentaxii
BranchAffectedFixed in
0.2≤ 0.2.0no fix published
Libtaxii project libtaxii
BranchAffectedFixed in
1.1≤ 1.1.117no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update libtaxii to 1.1.118

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVSS 3.19.8read 2026-10-23
  • NVDCVSS 2.07.5read 2026-10-23
  • NVDweakness (CWE)CWE-918read 2026-10-23
  • FIRST EPSSEPSS score2.3 %2026-11-08
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryCRITICAL2021-04-20

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2020-10-17
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-836c-xg97-8p4h

Frequently asked questions

What is CVE-2020-27197?

TAXII libtaxii through 1.1.117, as used in EclecticIQ OpenTAXII through 0.2.0 and other products, allows SSRF via an initial http:// substring to the parse method, even when the no_network setting is used for the XML parser. NOTE: the vendor points out that the parse method "wraps the lxml library" and that this may be an issue to "raise ... to the lxml group.

Is CVE-2020-27197 actively exploited?

Active exploitation of CVE-2020-27197 has not been confirmed. Its EPSS score was 2.3% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-27197?

CVE-2020-27197 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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