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


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.62% (48th percentile)

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  • Snyk IDSNYK-AMZN2023-PYTHONPYASN1DOC-18531365
  • published5 Aug 2026
  • disclosed14 Jul 2026

Introduced: 14 Jul 2026

CVE-2026-59886  (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 univ.Real type converted its mantissa, base, and exponent value to a Python float using exact big-integer exponentiation. A BER, CER, or DER encoded REAL value only a few bytes long can carry a very large exponent, causing float conversion through prettyPrint(), str(), comparison, arithmetic, int(), or an explicit float() call to consume excessive CPU and memory and hang applications that decode untrusted ASN.1 data and then print, log, or compare decoded objects. This issue is fixed in version 0.6.4.

CVSS Base Scores

version 3.1