CVE-2021-29421
HIGHCVSS 7.5/10EPSS 1.71%
Last modified
CVE-2021-29421 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. models/metadata.py in the pikepdf package 1.3.0 through 2.9.2 for Python allows XXE when parsing XMP metadata entries.. EPSS estimates a 1.71% chance of exploitation in the next 30 days.
Description
models/metadata.py in the pikepdf package 1.3.0 through 2.9.2 for Python allows XXE when parsing XMP metadata entries.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Pikepdf Project | Pikepdf | >= 1.3.0, <= 2.9.2 |
| Fedoraproject | Fedora | 32 |
| Fedoraproject | Fedora | 33 |
References
- https://github.com/pikepdf/pikepdf/blob/v2.10.0/docs/release_notes.rst#v2100Release Notes, Third Party Advisory
- https://github.com/pikepdf/pikepdf/commit/3f38f73218e5e782fe411ccbb3b44a793c0b343aPatch, Third Party Advisory
- https://github.com/pikepdf/pikepdf/blob/v2.10.0/docs/release_notes.rst#v2100Release Notes, Third Party Advisory
- https://github.com/pikepdf/pikepdf/commit/3f38f73218e5e782fe411ccbb3b44a793c0b343aPatch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-29421?
models/metadata.py in the pikepdf package 1.3.0 through 2.9.2 for Python allows XXE when parsing XMP metadata entries.
How severe is CVE-2021-29421?
CVE-2021-29421 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.71% probability of exploitation in the next 30 days.
How do I fix CVE-2021-29421?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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Are you affected by CVE-2021-29421?
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Scan your code nowSource: NVD / NIST