[CLSA-2026:1793091925] Fix CVE(s): CVE-2026-115557
Type:
security
Severity:
Critical
Release date:
2026-10-27 09:05:36 UTC
Description:
* SECURITY UPDATE: TLS chains using a compromised eMudhra intermediate CA key were accepted - debian/patches/CVE-2026-115557.patch: add Modules/_ssl/distrusted_spki.h, a denylist of the SHA-256 digests of the eight compromised eMudhra intermediate SubjectPublicKeyInfo structures, and enforce it from a new _ssl verify callback installed on every _ssl._SSLContext: a certificate whose SPKI digest is on the list fails verification with X509_V_ERR_CERT_REJECTED. Matching the public key rather than a certificate fingerprint also covers the cross-signed certificates that reuse one of the keys. Backport of upstream gh-160040 / PR 160042, which shipped only in 3.11.18, 3.12.16, 3.13.18, 3.14.10 and 3.15.2; 3.10 is EOL upstream and got no release with it. 3.10.22 keeps the older "keep current verify cb" shape in _set_verify_mode(), which is replaced by upstream's SSL_CTX_set_verify(self->ctx, mode, _ssl_verify_callback), and lists the _ssl dependencies in setup.py instead of MODULE__SSL_DEPS, so the new header is added there - CVE-2026-115557
CVEs fixed:
Updated packages:
  • alt-python310_3.10.22-3_amd64.deb
    sha:6d6a604bcc7d37fa3f5d8f47ecbfd77625f85a55
  • alt-python310-debug_3.10.22-3_amd64.deb
    sha:7ebbc1853303fb96c6828d79b0b83541b12ab13a
  • alt-python310-devel_3.10.22-3_amd64.deb
    sha:9892ad1b12dc82799b10ac804a53ec76d22b04ad
  • alt-python310-idle_3.10.22-3_amd64.deb
    sha:318495aaf324f7a145a51ffe8e48fd12a15a8ca6
  • alt-python310-libs_3.10.22-3_amd64.deb
    sha:92714fb3360bdbf82a37526a409398d92cf8fca7
  • alt-python310-test_3.10.22-3_amd64.deb
    sha:5cbc48347e8cf83688ae06ab504709d6793d34f4
  • alt-python310-tkinter_3.10.22-3_amd64.deb
    sha:7c11062d7e51e2fbd94c9fa5db7d0dd38c787556
  • alt-python310_3.10.22-3_arm64.deb
    sha:10b087188ba0d017e9fdf2a105b8f45b0a4eb620
  • alt-python310-debug_3.10.22-3_arm64.deb
    sha:bc75869aced9bbb343ac8c9a33b17156141c9bbd
  • alt-python310-devel_3.10.22-3_arm64.deb
    sha:836f510dd3940c7e01a4a068bd4638101ed87ef3
  • alt-python310-idle_3.10.22-3_arm64.deb
    sha:d8de07b33e691a8c4c8da2d129a2f0adee36c5d8
  • alt-python310-libs_3.10.22-3_arm64.deb
    sha:8c1e66e54f3ba4eeaaac1f2bff378d2fd1437927
  • alt-python310-test_3.10.22-3_arm64.deb
    sha:1dcec6b1edd4ab974f707cb9bc39c8ed3c330669
  • alt-python310-tkinter_3.10.22-3_arm64.deb
    sha:100b34128a12d50db9085961f6ebae78143a0823
Notes:
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