Python HPACK 1.0

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cpe:2.3:a:python:hpack:1.0:*:*:*:*:*:*:*

part: a version: 1.0 update: *

VendorPython (b57ad93a-6195-5192-9423-6cfad6044a8b)
ProductHpack (bf495c7f-f880-5abc-a7e9-77507fe89d77)
Edition*
Language*
Software edition*
Target software*
Target hardware*
Other*
NotesImported from NVD CPE 2.0 feed

PURL mappings

PURLSourceLast updated
pkg:deb/debian/python-hpack purl2cpe 2026-06-01 10:16:28.285312
pkg:deb/ubuntu/python-hpack purl2cpe 2026-06-01 10:16:28.285315
pkg:github/python-hyper/hpack purl2cpe 2026-06-01 10:16:28.285317
pkg:gitlab/kalilinux/python-hpack purl2cpe 2026-06-01 10:16:28.285320
pkg:pypi/hpack purl2cpe 2026-06-01 10:16:28.285323
pkg:rpm/fedora/python-hpack purl2cpe 2026-06-01 10:16:28.285326
pkg:rpm/opensuse/python-hpack purl2cpe 2026-06-01 10:16:28.285328

Vulnerability references

IdentifiercpeApplicabilitySubmitteddb.gcve.eu detailsRationale
CVE:CVE-2016-6581 vulnerable 2026-06-03 14:36:00.723414 Details available
A HTTP/2 implementation built using any version of the Python HPACK library between v1.0.0 and v2.2.0 could be targeted for a denial of service attack, specifically a so-called "HPACK Bomb" attack. This attack occurs when an attacker inserts a header field that is exactly the size of the HPACK dynamic header table into the dynamic header table. The attacker can then send a header block that is simply repeated requests to expand that field in the dynamic table. This can lead to a gigantic compression ratio of 4,096 or better, meaning that 16kB of data can decompress to 64MB of data on the target machine.
Published: 2017-01-10T15:00:00.000Z
Updated: 2024-08-06T01:36:28.459Z
Reference links
Imported from gcve-enriched-dumps CVE data

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