Python3.12 Security Update — AlmaLinux 9 (ALSA-2026:39771)
This is a security release for AlmaLinux 9. The fix ships in the current release line (referenced builds: 12.13-3). Update the product on every affected server to the patched release — there is no workaround, and unpatched servers remain exposed until updated.
Fix Commands
EL8+ (AlmaLinux/CloudLinux/Rocky)
sudo dnf update
What this means under a SharedLicense license
Your SharedLicense license itself is not affected — this is a change in AlmaLinux 9 software, not in licensing. Update the product through its standard update channel. Licenses keep working through updates; nothing needs re-issuing or re-activating.
Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems.
Security Fix(es):
* python: …
Type:
security
Severity:
important
Release date:
2026-07-15
Description:
Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems.
Security Fix(es):
* python: Python: CPU Denial of Service in HTML parser via repeated unterminated markup declarations (CVE-2026-15308)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
References:
Updated packages listed below:
| Architecture | Package | Checksum |
| aarch64 | python3.12-libs-3.12.13-3.el9_8.1.aarch64.rpm | 003e124e2e7b4ee60f5fd9b2e50a2c1eaf79abb75ad01db069718f681258b849 |
| aarch64 | python3.12-tkinter-3.12.13-3.el9_8.1.aarch64.rpm | 6ad9ce86660e50606f9f9b7973bd85a4ea595861bd6a4023b548f936841755bb |
| aarch64 | python3.12-debug-3.12.13-3.el9_8.1.aarch64.rpm | a37be0ec37a1fb47291dc0d42b88176964f207bf33eb62d26bc55d5c28cbf821 |
| aarch64 | python3.12-devel-3.12.13-3.el9_8.1.aarch64.rpm | d380de80130b73c6dd7af4697a6c6e1302d386329f1b5b70fc103601a15825f5 |
| aarch64 | python3.12-idle-3.12.13-3.el9_8.1.aarch64.rpm | d47a1dec0b9e4bb4df886f8921d0ec9790ef71582dddb4bbf80709ff74ad48b9 |
| aarch64 | python3.12-test-3.12.13-3.el9_8.1.aarch64.rpm | f9ae29ff3a6854e2d573e775e5eaa2895a94f9d61dd2907bf90390f5f0e6e87f |
| aarch64 | python3.12-3.12.13-3.el9_8.1.aarch64.rpm | fcc33dfc59bfc3327b537c857af4226d43f30c2428dcc1e29fa3983a22e66c6f |
| i686 | python3.12-tkinter-3.12.13-3.el9_8.1.i686.rpm | 10fb518c6ffa7b24b0847f091a17f30be38af6fcc5d5191ec83b917e900ae9f6 |
| i686 | python3.12-idle-3.12.13-3.el9_8.1.i686.rpm | 4c470b3c19afaa086bcedfe80805c6291dd738c050125c88981a2b52c16039b8 |
| i686 | python3.12-3.12.13-3.el9_8.1.i686.rpm | 7a3ba1b5841836a7bcd489654969ba8d56e84f4068b0b313021b0d00ae4ad443 |
| i686 | python3.12-test-3.12.13-3.el9_8.1.i686.rpm | 7ae1873498ab9ed0d26ec6d0f8b3165b957fabf2493809eba56d190ee2670d45 |
| i686 | python3.12-libs-3.12.13-3.el9_8.1.i686.rpm | 7fe05d8b09a424e42372bd862d7cd6845195055c736d1abe09438064224e172c |
| i686 | python3.12-devel-3.12.13-3.el9_8.1.i686.rpm | e461ff38a9be10f595711e6eaa6ebab1ba3b4f8ee88e856aaa5a49571f1eb7c0 |
| i686 | python3.12-debug-3.12.13-3.el9_8.1.i686.rpm | f9aa660118580eb61754304899ddcea213ee2702223cefa266461118138adc2d |
| ppc64le | python3.12-devel-3.12.13-3.el9_8.1.ppc64le.rpm | 13eb25a8bf84aa6e674eff6bb558daa2c513b5992546e339f176d85a07b1c9f5 |
| ppc64le | python3.12-libs-3.12.13-3.el9_8.1.ppc64le.rpm | 47ab5f1237177c9ac81a7d40856ad64602851b39613363923cb0b9729e1db4f6 |
| ppc64le | python3.12-tkinter-3.12.13-3.el9_8.1.ppc64le.rpm | 88cee3aee18411e05027f78d9e3adaa01d80948a4a855bf80f0a4b01a5ded650 |
| ppc64le | python3.12-idle-3.12.13-3.el9_8.1.ppc64le.rpm | 9b8e49270af67238b015e82a05d4179efe14a31a6582acd6e300765a7781b83b |
| ppc64le | python3.12-test-3.12.13-3.el9_8.1.ppc64le.rpm | 9bd25bf3193dd46c584f19c35e8c2c4394a7561c0fbf380e70f48263e88a4749 |
| ppc64le | python3.12-debug-3.12.13-3.el9_8.1.ppc64le.rpm | e15ce71cb591758bd5c033beb1452f1cfbce714a1e36267b1967dcec7e9507f8 |
| ppc64le | python3.12-3.12.13-3.el9_8.1.ppc64le.rpm | fd35b12d1aa9671916cbdac81c6328d76330b02b7e33970104c6187bb8da3aae |
| s390x | python3.12-tkinter-3.12.13-3.el9_8.1.s390x.rpm | 3bd4aed21b5c147f0a2e5924e184e69a02fa5d0f8e7c52b62a7855d8b3f78807 |
| s390x | python3.12-idle-3.12.13-3.el9_8.1.s390x.rpm | 554353ad1b83520d6a36ee4574ac4c92f3645bb4b1285f9ee10b28b5d744e1fd |
| s390x | python3.12-devel-3.12.13-3.el9_8.1.s390x.rpm | 70fc4afdecd92eb5abe4e26163b067df8245b27a961198e9a9356e23f00fd4b2 |
| s390x | python3.12-3.12.13-3.el9_8.1.s390x.rpm | 71da229cd86217d1f342ff4ebb96a3d1e5e439a56c9b617b16cb0e4a28a782db |
| s390x | python3.12-libs-3.12.13-3.el9_8.1.s390x.rpm | be47298465c6c2220a578a3b0f6ce1739d50885c10c2637ef04ce7795dc89eb4 |
| s390x | python3.12-test-3.12.13-3.el9_8.1.s390x.rpm | d0b216d64d0373f2d2d5f5054440b318f9b4fc4df72519ec44a30ddb9dbda0e7 |
| s390x | python3.12-debug-3.12.13-3.el9_8.1.s390x.rpm | fa851c47698163f59b800483203076a99bead3246a369ec98bf3b52ed2cbe430 |
| x86_64 | python3.12-3.12.13-3.el9_8.1.x86_64.rpm | 61040c3c065e2edf2c0704c7718c7350959c5fa4dddaad5d3c1812541002f1b6 |
| x86_64 | python3.12-tkinter-3.12.13-3.el9_8.1.x86_64.rpm | 67c4ef3ffd2fb9ff7e184419e4eb44686e3d35cdc2683a3f302d6cfefb2f91b3 |
| x86_64 | python3.12-idle-3.12.13-3.el9_8.1.x86_64.rpm | 6a7fc63170a2f97f60e9b5f0ee5089578f869030067d1d931db4e60db15b6bb7 |
| x86_64 | python3.12-test-3.12.13-3.el9_8.1.x86_64.rpm | 7cf20e97de30f541badda5ba7bd4c730e8f8e82e38a5e67ce80ddaa80ebb9ee9 |
| x86_64 | python3.12-libs-3.12.13-3.el9_8.1.x86_64.rpm | 86115e02e3757140c7925d37e404ebf5426fa9f98b4d22906509bfad254f5751 |
| x86_64 | python3.12-devel-3.12.13-3.el9_8.1.x86_64.rpm | c714cba44f253ee6452c9b830e5cdfa84ad30396288e6eaec030c9401e354888 |
| x86_64 | python3.12-debug-3.12.13-3.el9_8.1.x86_64.rpm | c8381c0d97b73eb5b2bbb81cdcdf9735acb1d3afdebf5775116a69a16c8de5b1 |
Notes:
This page is generated automatically from Red Hat security data and has not been checked for errors. For clarification or corrections please contact the AlmaLinux Packaging Team.
References
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