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python-jwcrypto

Python3 implementation of JOSE Web standards

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general
  • source: python-jwcrypto (main)
  • version: 1.5.6-1
  • maintainer: Debian FreeIPA Team (archive) (DMD)
  • uploaders: Timo Aaltonen [DMD]
  • arch: all
  • std-ver: 4.5.1
  • VCS: Git (Browse, QA)
versions [more versions can be listed by madison] [old versions available from snapshot.debian.org]
[pool directory]
  • o-o-stable: 0.8.0-1
  • o-o-sec: 0.8.0-1+deb11u1
  • oldstable: 1.1.0-1+deb12u1
  • stable: 1.5.6-1
  • testing: 1.5.6-1
  • unstable: 1.5.6-1
versioned links
  • 0.8.0-1: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
  • 0.8.0-1+deb11u1: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
  • 1.1.0-1+deb12u1: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
  • 1.5.6-1: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
binaries
  • python3-jwcrypto
action needed
A new upstream version is available: 1.5.7 high
A new upstream version 1.5.7 is available, you should consider packaging it.
Created: 2026-04-07 Last update: 2026-06-08 05:30
1 security issue in sid high

There is 1 open security issue in sid.

1 important issue:
  • CVE-2026-39373: JWCrypto implements JWK, JWS, and JWE specifications using python-cryptography. Prior to 1.5.7, an unauthenticated attacker can exhaust server memory by sending crafted JWE tokens with ZIP compression. The existing patch for CVE-2024-28102 limits input token size to 250KB but does not validate the decompressed output size. An unauthenticated attacker can cause memory exhaustion on memory-constrained systems. A token under the 250KB input limit can decompress to approximately 100MB. This vulnerability is fixed in 1.5.7.
Created: 2026-04-08 Last update: 2026-05-18 18:31
1 security issue in forky high

There is 1 open security issue in forky.

1 important issue:
  • CVE-2026-39373: JWCrypto implements JWK, JWS, and JWE specifications using python-cryptography. Prior to 1.5.7, an unauthenticated attacker can exhaust server memory by sending crafted JWE tokens with ZIP compression. The existing patch for CVE-2024-28102 limits input token size to 250KB but does not validate the decompressed output size. An unauthenticated attacker can cause memory exhaustion on memory-constrained systems. A token under the 250KB input limit can decompress to approximately 100MB. This vulnerability is fixed in 1.5.7.
Created: 2026-04-08 Last update: 2026-05-18 18:31
lintian reports 1 warning normal
Lintian reports 1 warning about this package. You should make the package lintian clean getting rid of them.
Created: 2025-09-11 Last update: 2025-09-11 00:03
1 low-priority security issue in trixie low

There is 1 open security issue in trixie.

1 issue left for the package maintainer to handle:
  • CVE-2026-39373: (needs triaging) JWCrypto implements JWK, JWS, and JWE specifications using python-cryptography. Prior to 1.5.7, an unauthenticated attacker can exhaust server memory by sending crafted JWE tokens with ZIP compression. The existing patch for CVE-2024-28102 limits input token size to 250KB but does not validate the decompressed output size. An unauthenticated attacker can cause memory exhaustion on memory-constrained systems. A token under the 250KB input limit can decompress to approximately 100MB. This vulnerability is fixed in 1.5.7.

You can find information about how to handle this issue in the security team's documentation.

Created: 2026-04-08 Last update: 2026-05-18 18:31
2 low-priority security issues in bookworm low

There are 2 open security issues in bookworm.

2 issues left for the package maintainer to handle:
  • CVE-2023-6681: (needs triaging) A vulnerability was found in JWCrypto. This flaw allows an attacker to cause a denial of service (DoS) attack and possible password brute-force and dictionary attacks to be more resource-intensive. This issue can result in a large amount of computational consumption, causing a denial of service attack.
  • CVE-2026-39373: (needs triaging) JWCrypto implements JWK, JWS, and JWE specifications using python-cryptography. Prior to 1.5.7, an unauthenticated attacker can exhaust server memory by sending crafted JWE tokens with ZIP compression. The existing patch for CVE-2024-28102 limits input token size to 250KB but does not validate the decompressed output size. An unauthenticated attacker can cause memory exhaustion on memory-constrained systems. A token under the 250KB input limit can decompress to approximately 100MB. This vulnerability is fixed in 1.5.7.

You can find information about how to handle these issues in the security team's documentation.

Created: 2024-02-13 Last update: 2026-05-18 18:31
Standards version of the package is outdated. wishlist
The package should be updated to follow the last version of Debian Policy (Standards-Version 4.7.4 instead of 4.5.1).
Created: 2021-08-18 Last update: 2026-03-31 15:01
news
[rss feed]
  • [2024-09-09] Accepted python-jwcrypto 0.8.0-1+deb11u1 (source) into oldstable-security (Chris Lamb)
  • [2024-06-16] Accepted python-jwcrypto 1.1.0-1+deb12u1 (source) into proposed-updates (Debian FTP Masters) (signed by: Steve McIntyre)
  • [2024-05-07] python-jwcrypto 1.5.6-1 MIGRATED to testing (Debian testing watch)
  • [2024-05-02] Accepted python-jwcrypto 1.5.6-1 (source) into unstable (Timo Aaltonen)
  • [2024-02-20] python-jwcrypto 1.5.4-1 MIGRATED to testing (Debian testing watch)
  • [2024-02-15] Accepted python-jwcrypto 1.5.4-1 (source) into unstable (Timo Aaltonen)
  • [2022-04-03] python-jwcrypto 1.1.0-1 MIGRATED to testing (Debian testing watch)
  • [2022-03-29] Accepted python-jwcrypto 1.1.0-1 (source) into unstable (Timo Aaltonen)
  • [2021-10-05] python-jwcrypto 1.0.0-2 MIGRATED to testing (Debian testing watch)
  • [2021-09-30] Accepted python-jwcrypto 1.0.0-2 (source) into unstable (Timo Aaltonen)
  • [2021-08-21] python-jwcrypto 1.0.0-1 MIGRATED to testing (Debian testing watch)
  • [2021-08-16] Accepted python-jwcrypto 1.0.0-1 (source) into unstable (Timo Aaltonen)
  • [2021-01-12] python-jwcrypto 0.8.0-1 MIGRATED to testing (Debian testing watch)
  • [2021-01-06] Accepted python-jwcrypto 0.8.0-1 (source) into unstable (Timo Aaltonen)
  • [2020-04-22] Accepted python-jwcrypto 0.6.0-2~bpo10+1 (source all) into buster-backports, buster-backports (Debian FTP Masters) (signed by: Mattia Rizzolo)
  • [2019-09-17] python-jwcrypto 0.6.0-2 MIGRATED to testing (Debian testing watch)
  • [2019-09-11] Accepted python-jwcrypto 0.6.0-2 (source) into unstable (Timo Aaltonen)
  • [2019-07-09] python-jwcrypto 0.6.0-1 MIGRATED to testing (Debian testing watch)
  • [2019-06-12] python-jwcrypto REMOVED from testing (Debian testing watch)
  • [2019-04-02] Accepted python-jwcrypto 0.6.0-1 (source) into unstable (Timo Aaltonen)
  • [2017-12-28] python-jwcrypto 0.4.2-1 MIGRATED to testing (Debian testing watch)
  • [2017-12-23] Accepted python-jwcrypto 0.4.2-1 (source) into unstable (Timo Aaltonen)
  • [2016-09-25] python-jwcrypto 0.3.2-1 MIGRATED to testing (Debian testing watch)
  • [2016-09-19] Accepted python-jwcrypto 0.3.2-1 (source) into unstable (Timo Aaltonen)
  • [2015-10-26] python-jwcrypto 0.2.1-1 MIGRATED to testing (Britney)
  • [2015-10-15] Accepted python-jwcrypto 0.2.1-1 (source all) into unstable, unstable (Timo Aaltonen)
bugs [bug history graph]
  • all: 1
  • RC: 0
  • I&N: 1
  • M&W: 0
  • F&P: 0
  • patch: 0
links
  • homepage
  • lintian (0, 1)
  • buildd: logs, reproducibility
  • popcon
  • browse source code
  • other distros
  • security tracker
ubuntu Ubuntu logo [Information about Ubuntu for Debian Developers]
  • version: 1.5.6-1

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