Allocation of Resources Without Limits or Throttling Affecting python-pyasn1-doc package, versions <0:0.4.8-4.amzn2023.0.5


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.62% (48th percentile)

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  • Snyk IDSNYK-AMZN2023-PYTHONPYASN1DOC-18530425
  • published5 Aug 2026
  • disclosed14 Jul 2026

Introduced: 14 Jul 2026

CVE-2026-59884  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 python-pyasn1-doc to version 0:0.4.8-4.amzn2023.0.5 or higher.
This issue was patched in ALAS2023-2026-2000.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-pyasn1-doc package and not the python-pyasn1-doc package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the BER decoder shared by the CER and DER codecs parses long-form tags by accumulating continuation octets without an upper bound on the tag ID size, allowing a crafted input to force construction of an arbitrarily large integer with CPU cost growing quadratically and to trigger unhandled ValueError exceptions in Python 3.11+ error formatting paths. Any application decoding untrusted BER, CER, or DER input is affected. This issue is fixed in version 0.6.4.

CVSS Base Scores

version 3.1