PyPI/pyasn1 CVE-2026-23490: high 7.5, EPSS 0.76%
pyasn1 has a DoS vulnerability in decoder
Action: Upgrade pyasn1 to 0.6.2 or later.
pip install pyasn1==0.6.2Affected
| introduced | fixed | last affected |
|---|---|---|
| 0.6.1 | 0.6.2 | - |
Fixed versions
| 0.6.2 |
Sources
- osv: PYSEC-2026-1810
- https://github.com/pyasn1/pyasn1/security/advisories/GHSA-63vm-454h-vhhq
- https://nvd.nist.gov/vuln/detail/CVE-2026-23490
- https://github.com/pyasn1/pyasn1/commit/3908f144229eed4df24bd569d16e5991ace44970
- https://github.com/pyasn1/pyasn1/commit/be353d755f42ea36539b4f5053c652ddf56979a6
- https://github.com/pyasn1/pyasn1
- https://github.com/pyasn1/pyasn1/blob/0f07d7242a78ab4d129b26256d7474f7168cf536/pyasn1/codec/ber/decoder.py#L496
- https://github.com/pyasn1/pyasn1/releases/tag/v0.6.2
- https://lists.debian.org/debian-lts-announce/2026/02/msg00002.html
- https://pypi.org/project/pyasn1
- https://github.com/advisories/GHSA-63vm-454h-vhhq
CVE-2026-23490 · published · modified · JSON