Red Hat Security Advisory: python-tornado security update
Affects Red Hat python-tornadoSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited.
Data as of 29 Oct 2026, 09:13 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 38% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 14 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Red Hat Product Security Red Hat | Affected
| Fixed in– |
AI-suggested
Red Hat has released updated python-tornado packages (version 6.5.8-0.el9_8.1) that fix these vulnerabilities. Users of Red Hat Enterprise Linux 9 should apply the security update as described in the Red Hat advisory (https://access.redhat.com/articles/11258) to remediate these issues. No additional mitigations or workarounds are specified in the advisory.
Description
Two security vulnerabilities have been identified in the python-tornado package used in Red Hat Enterprise Linux 9. The first vulnerability (CVE-2026-49853) involves information disclosure due to improper handling of credentials during HTTP redirects. The second vulnerability (CVE-2026-49855) allows denial of service via uncontrolled gzip decompression memory consumption. Red Hat has issued an important security advisory and released updated python-tornado packages to address these issues.
References
- access.redhat.com/errata/RHSA-2026:67146 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2500672 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2500686 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_67146.json (opens in a new tab)