VDB

CVE-2026-59885

CVE-2026-59885 PUBLISHED CVSS 7.5 HIGH

Reported by GitHub_M · Published July 14, 2026

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the BER, CER, and DER decoders process OBJECT IDENTIFIER and RELATIVE-OID values in quadratic time relative to the number of arcs, so a small crafted payload containing an OID with many arcs consumes excessive CPU per decode() call and can deny service to applications that decode untrusted ASN.1 data. The corresponding encoders have the same quadratic behavior when an application re-encodes previously decoded attacker-supplied values. This issue is fixed in version 0.6.4.

Risk Scores

CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products

VendorProductVersions
pyasn1pyasn1< 0.6.4
wolfikubeflow-volumes-web-app0, 0, 0
chainguardrequest-12760, 0, 0
wolfisuperset-6.00, 0, 0
chainguardpy3-cassandra-medusa0, 0, 0
PyPIpyasn10
chainguarddatahub-ingestion-fips0, 0, 0
chainguardapache-beam-python-3.12-sdk0, 0, 0
chainguardopenstack-keystone-2025.20, 0, 0
wolfikubeflow-pipelines-visualization-server0, 0, 0
wolfisuperset-5.00, 0
chainguardopenstack-keystone-2026.10, 0, 0
chainguardspamcheck0, 0, 0
chainguardkubeflow-jupyter-web-app0, 0, 0
chainguardopenstack-keystone-2026.1-fips0, 0, 0
chainguardgitlab-cng-19.10, 0, 0
wolfikserve0, 0, 0
wolfiairflow-30, 0, 0
wolfidatadog-agent-7.730, 0, 0
chainguarddatadog-agent-fips-7.730, 0, 0

…and 52 more

Timeline

  • Jul 14, 2026 Coalition ESS Score
  • Jul 14, 2026 CVE Published
  • Aug 1, 2026 Security Advisory
  • Aug 7, 2026 EPSS Score
  • Aug 7, 2026 Distribution Patch
  • Aug 7, 2026 Security Advisory
  • Aug 7, 2026 Distribution Patch
  • Aug 7, 2026 Security Advisory
  • Aug 24, 2026 EPSS Score
  • Aug 26, 2026 EPSS Score
  • Aug 30, 2026 EPSS Score
  • Sep 4, 2026 EPSS Score

References

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