VDB
RHSA-2026:80741
RHSA-2026:80741
PUBLISHED
CVSS 7.5 HIGH
A flaw was found in Tornado's SimpleAsyncHTTPClient. When following a redirect to a different origin, the client improperly retains and forwards sensitive authentication credentials, such as Authorization headers, to the new, potentially untrusted, destination. This vulnerability allows a remote attacker to gain unauthorized access to a user's credentials, leading to information disclosure.
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | python3-tornado-0:6.5.8-0.el10_0.1.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 6.5.8-0.el10 |
| Red Hat | python-tornado-debugsource-0:6.5.8-0.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 6.5.8-0.el10 |
| Red Hat | python3-tornado-debuginfo-0:6.5.8-0.el10_0.1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 6.5.8-0.el10 |
| Red Hat | python3-tornado-0:6.5.8-0.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 6.5.8-0.el10 |
| Red Hat | python3-tornado-debuginfo-0:6.5.8-0.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 6.5.8-0.el10 |
| Red Hat | python-tornado-debugsource-0:6.5.8-0.el10_0.1.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 6.5.8-0.el10 |
| Red Hat | python-tornado-0:6.5.8-0.el10_0.1.src as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 6.5.8-0.el10 |
| Red Hat | python3-tornado-debuginfo-0:6.5.8-0.el10_0.1.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 6.5.8-0.el10 |
| Red Hat | python-tornado-debugsource-0:6.5.8-0.el10_0.1.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 6.5.8-0.el10 |
| Red Hat | python3-tornado-0:6.5.8-0.el10_0.1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 6.5.8-0.el10 |
| Red Hat | python3-tornado-debuginfo-0:6.5.8-0.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 6.5.8-0.el10 |
| Red Hat | python-tornado-debugsource-0:6.5.8-0.el10_0.1.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 6.5.8-0.el10 |
| Red Hat | python3-tornado-0:6.5.8-0.el10_0.1.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v. 10.0) | 6.5.8-0.el10 |
Timeline
- Oct 12, 2026 CVE Published
- Oct 12, 2026 CVE Updated
- Oct 12, 2026 Distribution Patch
- Oct 12, 2026 Distribution Patch
- Oct 12, 2026 Security Advisory
- Oct 12, 2026 Security Advisory
- Oct 12, 2026 Security Advisory
- Oct 12, 2026 Security Advisory
References
- https://access.redhat.com/errata/RHSA-2026:80741 advisory
- https://access.redhat.com/security/updates/classification/#important advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2500672 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2500686 issue
- https://bugzilla.redhat.com/show_bug.cgi?id=2533953 issue
- https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_80741.json advisory
- https://access.redhat.com/security/cve/CVE-2026-49853 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-49853 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-49853 advisory
- https://github.com/tornadoweb/tornado/commit/aba2569f7ed7a6bdbef816658fb6b7182531b751 advisory
- https://github.com/tornadoweb/tornado/pull/3626 advisory
- https://github.com/tornadoweb/tornado/releases/tag/v6.5.6 advisory
- https://github.com/tornadoweb/tornado/security/advisories/GHSA-3x9g-8vmp-wqvf advisory
- https://access.redhat.com/security/cve/CVE-2026-49855 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-49855 advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-49855 advisory
- https://github.com/tornadoweb/tornado/commit/ff808b33adc52d89a549376a5e3628e92abbc8ff advisory
- https://github.com/tornadoweb/tornado/security/advisories/GHSA-mgf9-4vpg-hj56 advisory
- https://access.redhat.com/security/cve/CVE-2026-91990 advisory
- https://www.cve.org/CVERecord?id=CVE-2026-91990 advisory
…and 3 more