# pyasn1 (PyPI) vulnerabilities Source: https://junglewise.ai/threats/technologies/pypi-pyasn1 Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/pypi-pyasn1.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 9 vulnerabilities in pyasn1 (PyPI): 0 in the last 7 days and 4 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-119197, was published on 29 October 2026. 4 vulnerabilities in the last four weeks, up from none in the four before. ## Counts - Last 7 days: 0 - Last 30 days: 4 - Last 90 days: 4 - All time: 9 (0 critical, 0 exploited in the wild) ## About pyasn1 (PyPI) Python library for working with ASN.1 data structures. ## Latest pyasn1 (PyPI) vulnerabilities - [CVE-2026-119197: pyasn1 quadratic binary REAL mantissa decoding DoS](https://junglewise.ai/threats/cve-2026-119197-pyasn1-is-a-generic-asn-1-library-for-python-prior-to-0-6-5) (high, CVSS 7.5, published 29 Oct 2026) - [CVE-2026-119196: pyasn1 quadratic CPU exhaustion in BIT STRING decoding](https://junglewise.ai/threats/cve-2026-119196-pyasn1-is-a-generic-asn-1-library-for-python-prior-to-0-6-5) (high, CVSS 7.5, published 29 Oct 2026) - [CVE-2026-119195: pyasn1 quadratic algorithm denial of service in ASN.1 decoding](https://junglewise.ai/threats/cve-2026-119195-pyasn1-is-a-generic-asn-1-library-for-python-prior-to-0-6-5) (high, CVSS 7.5, published 29 Oct 2026) - [CVE-2026-119194: pyasn1 quadratic CPU use in schemaless container decoding](https://junglewise.ai/threats/cve-2026-119194-pyasn1-is-a-generic-asn-1-library-for-python-from-0-3-3-until-0) (high, CVSS 7.5, published 29 Oct 2026) - [CVE-2026-59886: pyasn1 resource consumption in univ.Real float conversion](https://junglewise.ai/threats/cve-2026-59886-pyasn1-resource-consumption-in-univ-real-float-conversion) (high, CVSS 7.5, published 14 Jul 2026) - [CVE-2026-59885: pyasn1 algorithmic complexity denial of service in OID processing](https://junglewise.ai/threats/cve-2026-59885-pyasn1-algorithmic-complexity-denial-of-service-in-oid-processing) (high, CVSS 7.5, published 14 Jul 2026) - [CVE-2026-59884: pyasn1 denial of service via unbounded long-form tag IDs in BER decoder](https://junglewise.ai/threats/cve-2026-59884-pyasn1-denial-of-service-via-unbounded-long-form-tag-ids-in-ber) (high, CVSS 7.5, published 14 Jul 2026) - [CVE-2026-30922: pyasn1 uncontrolled recursion denial of service during decoding](https://junglewise.ai/threats/cve-2026-30922-pyasn1-uncontrolled-recursion-denial-of-service-during-decoding) (high, CVSS 7.5, published 18 Mar 2026) - [CVE-2026-23490: pyasn1 memory exhaustion DoS in OID decoder](https://junglewise.ai/threats/cve-2026-23490-pyasn1-memory-exhaustion-dos-in-oid-decoder) (high, CVSS 7.5, published 16 Jan 2026) ## Most severe pyasn1 (PyPI) vulnerabilities - [CVE-2026-30922: pyasn1 uncontrolled recursion denial of service during decoding](https://junglewise.ai/threats/cve-2026-30922-pyasn1-uncontrolled-recursion-denial-of-service-during-decoding) (high, CVSS 7.5, published 18 Mar 2026) - [CVE-2026-23490: pyasn1 memory exhaustion DoS in OID decoder](https://junglewise.ai/threats/cve-2026-23490-pyasn1-memory-exhaustion-dos-in-oid-decoder) (high, CVSS 7.5, published 16 Jan 2026) - [CVE-2026-59886: pyasn1 resource consumption in univ.Real float conversion](https://junglewise.ai/threats/cve-2026-59886-pyasn1-resource-consumption-in-univ-real-float-conversion) (high, CVSS 7.5, published 14 Jul 2026) - [CVE-2026-59885: pyasn1 algorithmic complexity denial of service in OID processing](https://junglewise.ai/threats/cve-2026-59885-pyasn1-algorithmic-complexity-denial-of-service-in-oid-processing) (high, CVSS 7.5, published 14 Jul 2026) - [CVE-2026-59884: pyasn1 denial of service via unbounded long-form tag IDs in BER decoder](https://junglewise.ai/threats/cve-2026-59884-pyasn1-denial-of-service-via-unbounded-long-form-tag-ids-in-ber) (high, CVSS 7.5, published 14 Jul 2026) - [CVE-2026-119195: pyasn1 quadratic algorithm denial of service in ASN.1 decoding](https://junglewise.ai/threats/cve-2026-119195-pyasn1-is-a-generic-asn-1-library-for-python-prior-to-0-6-5) (high, CVSS 7.5, published 29 Oct 2026) - [CVE-2026-119197: pyasn1 quadratic binary REAL mantissa decoding DoS](https://junglewise.ai/threats/cve-2026-119197-pyasn1-is-a-generic-asn-1-library-for-python-prior-to-0-6-5) (high, CVSS 7.5, published 29 Oct 2026) - [CVE-2026-119196: pyasn1 quadratic CPU exhaustion in BIT STRING decoding](https://junglewise.ai/threats/cve-2026-119196-pyasn1-is-a-generic-asn-1-library-for-python-prior-to-0-6-5) (high, CVSS 7.5, published 29 Oct 2026) - [CVE-2026-119194: pyasn1 quadratic CPU use in schemaless container decoding](https://junglewise.ai/threats/cve-2026-119194-pyasn1-is-a-generic-asn-1-library-for-python-from-0-3-3-until-0) (high, CVSS 7.5, published 29 Oct 2026) ## Vulnerabilities per week 4 vulnerabilities in the last four weeks, up from none in the four before. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 4 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Other PyPI technologies - [tensorflow (PyPI)](https://junglewise.ai/threats/technologies/pypi-tensorflow): 435 vulnerabilities - [tensorflow-cpu (PyPI)](https://junglewise.ai/threats/technologies/tensorflow-cpu): 430 vulnerabilities - [tensorflow-gpu (PyPI)](https://junglewise.ai/threats/technologies/tensorflow-gpu): 427 vulnerabilities - [open-webui (PyPI)](https://junglewise.ai/threats/technologies/open-webui): 177 vulnerabilities - [Django (PyPI)](https://junglewise.ai/threats/technologies/django): 173 vulnerabilities - [apache-airflow (PyPI)](https://junglewise.ai/threats/technologies/apache-airflow): 159 vulnerabilities - [pillow (PyPI)](https://junglewise.ai/threats/technologies/pillow): 125 vulnerabilities - [praisonai (PyPI)](https://junglewise.ai/threats/technologies/pypi-praisonai): 120 vulnerabilities - [vllm (PyPI)](https://junglewise.ai/threats/technologies/pypi-vllm): 117 vulnerabilities - [plone (PyPI)](https://junglewise.ai/threats/technologies/pypi-plone): 101 vulnerabilities - [mlflow (PyPI)](https://junglewise.ai/threats/technologies/mlflow): 88 vulnerabilities - [picklescan (PyPI)](https://junglewise.ai/threats/technologies/picklescan): 86 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "pyasn1 (PyPI) vulnerabilities", https://junglewise.ai/threats/technologies/pypi-pyasn1, 13 November 2026.