Resource Exhaustion Affecting python313-pyasn1 package, versions <0.6.1-160000.5.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.62% (48th percentile)

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  • Snyk IDSNYK-SLES1600-PYTHON313PYASN1-18345114
  • published28 Jul 2026
  • disclosed20 Jul 2026

Introduced: 20 Jul 2026

CVE-2026-59884  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade SLES:16.0.0 python313-pyasn1 to version 0.6.1-160000.5.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python313-pyasn1 package and not the python313-pyasn1 package as distributed by SLES. See How to fix? for SLES:16.0.0 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