CVE-2020-27197
CVE-2020-27197 is a critical-severity vulnerability in Eclecticiq Opentaxii with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-918.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 2% (81st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-918
- Affected product: Eclecticiq Opentaxii
- Published:
- Last modified:
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.
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.
- How severe is CVE-2020-27197?
- CVE-2020-27197 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-27197 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-27197?
- CVE-2020-27197 primarily affects Eclecticiq Opentaxii. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2020-27197?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2020-27197 published?
- CVE-2020-27197 was published on 2020-10-17 and last updated on 2026-06-17.
References
- http://packetstormsecurity.com/files/159662/Libtaxii-1.1.117-OpenTaxi-0.2.0-Server-Side-Request-Forgery.html
- https://github.com/TAXIIProject/libtaxii/issues/246
- https://github.com/eclecticiq/OpenTAXII/issues/176
Affected products (2)
- cpe:2.3:a:eclecticiq:opentaxii:*:*:*:*:*:*:*:*
- cpe:2.3:a:libtaxii_project:libtaxii:*:*:*:*:*:*:*:*
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