CVE-2022-33977
untangle vulnerable to XML Entity Expansion
untangle is a python library to convert XML data to python objects. untangle versions 1.2.0 and earlier improperly restricts recursive entity references in DTDs. By exploiting this vulnerability, a remote unauthenticated attacker may cause a denial-of-service (DoS) condition on the server where the product is running.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
7.5
untangle is a python library to convert XML data to python objects. untangle versions 1.2.0 and earlier improperly restricts recursive entity references in DTDs. By exploiting this vulnerability, a remote unauthenticated attacker may cause a denial-of-service (DoS) condition on the server where the product is running.
- Record
CVE-2022-33977- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-776
- Updated
- 2026-11-02
CVE List No score
untangle is a python library to convert XML data to python objects. untangle versions 1.2.0 and earlier improperly restricts recursive entity references in DTDs. By exploiting this vulnerability, a remote unauthenticated attacker may cause a denial-of-service (DoS) condition on the server where the product is running.
- Record
CVE-2022-33977- Updated
- 2026-11-02
EUVDEUVD-2022-0349 No score
untangle is a python library to convert XML data to python objects. untangle versions 1.2.0 and earlier improperly restricts recursive entity references in DTDs. By exploiting this vulnerability, a remote unauthenticated attacker may cause a denial-of-service (DoS) condition on the server where the product is running.
- Record
EUVD-2022-0349- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-7xr3-6ggc-wc9p
8.7
untangle vulnerable to XML Entity Expansion
Impact
An attacker may be able to cause a denial-of-service (DoS) condition on the server on which the product is running. This affects untangle versions up to and including 1.2.0
Patches
The problem has been fixed with version 1.2.1
Workarounds
None
References
https://jvn.jp/en/jp/JVN30454777/
For more information
If you have any questions or comments about this advisory:
- Open an issue
- Record
GHSA-7xr3-6ggc-wc9p- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-776
- Updated
- 2026-11-02
OSVGHSA-7xr3-6ggc-wc9p
8.7
untangle vulnerable to XML Entity Expansion
Impact
An attacker may be able to cause a denial-of-service (DoS) condition on the server on which the product is running. This affects untangle versions up to and including 1.2.0
Patches
The problem has been fixed with version 1.2.1
Workarounds
None
References
https://jvn.jp/en/jp/JVN30454777/
For more information
If you have any questions or comments about this advisory:
- Open an issue
- Record
GHSA-7xr3-6ggc-wc9p- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-776
- Updated
- 2026-11-02
OSV No score
untangle is a python library to convert XML data to python objects. untangle versions 1.2.0 and earlier improperly restricts recursive entity references in DTDs. By exploiting this vulnerability, a remote unauthenticated attacker may cause a denial-of-service (DoS) condition on the server where the product is running.
- Record
CVE-2022-33977- Updated
- 2026-11-02
OSVDEBIAN-CVE-2022-33977 No score
untangle is a python library to convert XML data to python objects. untangle versions 1.2.0 and earlier improperly restricts recursive entity references in DTDs. By exploiting this vulnerability, a remote unauthenticated attacker may cause a denial-of-service (DoS) condition on the server where the product is running.
- Record
DEBIAN-CVE-2022-33977- Updated
- 2026-11-03
OSVPYSEC-2022-243 No score
untangle is a python library to convert XML data to python objects. untangle versions 1.2.0 and earlier improperly restricts recursive entity references in DTDs. By exploiting this vulnerability, a remote unauthenticated attacker may cause a denial-of-service (DoS) condition on the server where the product is running.
- Record
PYSEC-2022-243- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
untanglePyPI |
before 1.2.1 | 1.2.1 |
python-untangleDebian:12 |
before 1.2.1-1 | 1.2.1-1 |
python-untangleDebian:13 |
before 1.2.1-1 | 1.2.1-1 |
python-untangleDebian:14 |
before 1.2.1-1 | 1.2.1-1 |
untanglePyPI |
before 1.2.1, plus listed versions 0.30.3.10.4.01.0.01.1.01.1.11.2.0 |
1.2.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-33977 is a high vulnerability (CVSS 7.5) in Christian Stefanescu Untangle, published July 26, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.81%, the 78th percentile. Fixed in untangle 1.2.1.
References
github.com/stchris/untangle
github.com/stchris/untangle/releases/tag/1.2.1
jvn.jp/en/jp/JVN30454777
github.com/stchris/untangle/security/advisories/GHSA-7xr3-6ggc-wc9p
nvd.nist.gov/vuln/detail/CVE-2022-33977
github.com/pypa/advisory-database/tree/main/vulns/untangle/PYSEC-2022-243.yaml
github.com/advisories/GHSA-7xr3-6ggc-wc9p
github.com/CVEProject/cvelistV5/tree/main/cves/2022/33xxx/CVE-2022-33977.json
security-tracker.debian.org/tracker/CVE-2022-33977