CVE-2022-0391 — A flaw was found in Python, specifically within the urllib.parse module. This module helps break...
A flaw was found in Python, specifically within the urllib.parse module. This module helps break Uniform Resource Locator (URL) strings into components. The issue involves how the urlparse method does not sanitize input and allows characters like '\r' and '\n' in the URL path. This flaw allows an attacker to input a crafted URL, leading to injection attacks. This flaw affects Python versions prior to 3.10.0b1, 3.9.5, 3.8.11, 3.7.11 and 3.6.14.
Who exploits it and how urgent it is
A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.
How the score was calculated
- EPSS 8.3% (30-day exploitation probability)+14
- Technical severity (high)+6
- Automatable exploitation (SSVC)+3
The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.
CISA SSVC assessment CISA
Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.
Remediation
Fixes and mitigations documented by the sources — linked to the original advisory.
- Documented patch — bugs.python.org (NIST National Vulnerability Database)
- Documented patch — www.oracle.com (NIST National Vulnerability Database)
First 24 hours
Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.
- Identify exposed assets running the affected vendor/product/version combinations (Fedoraproject Fedora, Netapp Active Iq Unified Manager, Netapp Hci…).
- The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
- Apply the fixed version or the patch documented under Remediation.
- EPSS ahead of 95% of scored CVEs: prioritize it in the patch queue.
- Search available logs for exploit probes matching the vulnerability class (injection), errors and authentication anomalies.
Affected scope
Vendor, product and versions as the sources word them.
| Vendor | Product | Versions | Status | Source |
|---|---|---|---|---|
| Fedoraproject | Fedora | version 35version 34 | Vulnerable | NIST National Vulnerability Database |
| Netapp | Active Iq Unified Manager | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
| Netapp | Hci | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
| Netapp | Hci Compute Node | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
| Netapp | Management Services For Element Software | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
| Netapp | Ontap Select Deploy Administration Utility | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
| Netapp | Solidfire, Enterprise Sds & Hci Storage Node | versions not specified by the source | Vulnerable | NIST National Vulnerability Database |
| Oracle | Http Server | version 12.2.1.4.0version 12.2.1.3.0 | Vulnerable | NIST National Vulnerability Database |
| Oracle | Zfs Storage Appliance Kit | version 8.8 | Vulnerable | NIST National Vulnerability Database |
| Python | Python |
≥ 3.7.0 and < 3.7.11≥ 3.8.0 and < 3.8.11≥ 3.9.0 and < 3.9.5version 3.10.0-alpha1version 3.10.0-alpha2version 3.10.0-alpha3version 3.10.0-alpha4version 3.10.0-alpha5 and 2 moreversion 3.10.0-alpha6< 3.6.14 |
Vulnerable | NIST National Vulnerability Database |
Attack characteristics
The CVSS vector, decoded. It describes the attack, not your exposure to it.
Every base score collected
Sources score independently and may disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Scored by |
|---|---|---|---|---|---|
| 7.5 | CVSS 3.1 | High | 3.9 | 3.6 | nvd@nist.gov via NIST National Vulnerability Database |
| 7.5 | CVSS 3.1 | High | 3.9 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 via NIST National Vulnerability Database |
| 7.5 | CVSS 3.1 | High | — | — | CISA-ADP via CVE Program (cve.org) e CISA ADP |
| 5.0 | CVSS 2.0 | Medium | 10.0 | 2.9 | nvd@nist.gov via NIST National Vulnerability Database |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N (score shown at the top: nvd@nist.gov) Weakness MITRE
Weakness class according to MITRE’s CWE catalog.
EPSS over time FIRST
Oct 13, 2026 → Oct 14, 2026 · 2 reading(s) · max 8.33%
Detection
Read off the CVSS vector and the weakness class. Starting points, not tested rules.
- Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
- Look for parameters with command/query metacharacters and unexpected child processes of the service.
Timeline
What happened to this CVE, newest first.
- 2026
- SSVC assessment updated
- Record published
- Fix documented
- Affected products added · python/python, netapp/active iq unified manager, netapp/hci, netapp/management services for element software, netapp/ont
- CVSS changed · 7.5
- Source status changed · → Modified
- Record created in this database
- 2022
- CVE published
Source activity
Repeated readings are counted rather than listed.
- 2× References added · Oct 14, 2026 – Oct 14, 2026
- 1× Official description updated · Oct 14, 2026 – Oct 14, 2026
References
12 on the record
- www.oracle.com/security-alerts/cpuapr2022.html
- bugs.python.org/issue43882
- lists.debian.org/debian-lts-announce/2025/03/msg00013.html
- lists.debian.org/debian-lts-announce/2023/09/msg00022.html
- cert-portal.siemens.com/productcert/html/ssa-398330.html
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CSD2
- security.netapp.com/advisory/ntap-20220225-0009/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UDBD
- nvd.nist.gov/vuln/detail/CVE-2022-0391
- github.com/advisories/GHSA-75jm-2xrg-5wpf
- security.gentoo.org/glsa/202305-02
- lists.debian.org/debian-lts-announce/2024/11/msg00024.html
Elsewhere on this site
Related CVEs (same products)
- High CVE-2026-60530 Improper Privilege Management in Oracle Http Server Jul 21, 2026
- High CVE-2026-60454 Improper Privilege Management in Oracle Http Server Jul 21, 2026
- Critical CVE-2026-60438 Improper Access Control in Oracle Http Server Jul 21, 2026
- High CVE-2026-60431 Exposure of Sensitive Information in Oracle Http Server Jul 21, 2026
- Critical CVE-2026-60364 Improper Access Control in Oracle Http Server Jul 21, 2026
- Critical CVE-2026-60365 Missing Authentication for Critical Function in Oracle Http Server Jul 21, 2026
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.
Answered from this record
Text assembled only from the fields above — no additional claims.
What should defenders know first?
CVE-2022-0391 is "A flaw was found in Python, specifically within the urllib.parse module. This module helps break...", rated High. It affects Fedora (Fedoraproject); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 7.5 describes technical severity. EPSS 8.33% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.
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