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TI-2026-47585 Aliases CVE-2026-67289GHSA-3x8f-6ffv-v2wc

FreeRDP before 3.29.0 HTTP Proxy Request Injection via Redirection

Priority MEDIUM 48CWE-113Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 20 fixed, 1 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat.

Summary

FreeRDP before 3.29.0 (affected versions <= 3.28.0) does not validate CRLF and control characters in the server-controlled RDP redirection TargetNetAddress field. This value is copied into the client's ServerHostname and, when the client connects through an HTTP proxy, is written directly into the proxy CONNECT request line and Host header by http_proxy_connect() without filtering. A malicious or compromised RDP server can send a crafted redirection PDU containing embedded control characters to inject arbitrary headers/requests into the HTTP proxy CONNECT request.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00428 37th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial FreeRDP (FreeRDP): 3.29.0Red Hat: 11 advisoriesRed Hat: 20 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
FreeRDPFreeRDPbefore 3.29.03.29.0Patch availableCNA
  • FreeRDP VendorFreeRDP Affected before 3.29.0 Fixed in 3.29.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*before 3.29.0VulnerableFreeRDP
  • cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:* Versions before 3.29.0 Vulnerable ·FreeRDP

Remediation

  • Fix · CNA FreeRDP (FreeRDP) Fixed in 3.29.0

Red Hat 11 advisories

  • RHSA-2026:62401 Released 2026-09-02 · Red Hat rating Important
    freerdp security update
    • Red Hat Enterprise Linux Server (v. 7 ELS) freerdp-2.1.1-5.el7_9.11, freerdp-libs-2.1.1-5.el7_9.11, freerdp-libs-2.1.1-5.el7_9.11.ppc +2
    • Red Hat Enterprise Linux Server Optional (v. 7 ELS) freerdp-devel-2.1.1-5.el7_9.11, freerdp-devel-2.1.1-5.el7_9.11.ppc, libwinpr-devel-2.1.1-5.el7_9.11 +1
  • RHSA-2026:61251 Released 2026-08-31 · Red Hat rating Important
    freerdp security update
    • Red Hat Enterprise Linux AppStream E4S (v.8.8) freerdp-2:2.2.0-12.el8_8.10, freerdp-libs-2:2.2.0-12.el8_8.10, libwinpr-2:2.2.0-12.el8_8.10 +1
    • Red Hat Enterprise Linux AppStream TUS (v.8.8) freerdp-2:2.2.0-12.el8_8.10, freerdp-libs-2:2.2.0-12.el8_8.10, libwinpr-2:2.2.0-12.el8_8.10 +1
  • RHSA-2026:61250 Released 2026-08-31 · Red Hat rating Important
    freerdp security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.6) freerdp-2:2.2.0-7.el8_6.11, freerdp-libs-2:2.2.0-7.el8_6.11, libwinpr-2:2.2.0-7.el8_6.11 +1
    • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) freerdp-2:2.2.0-7.el8_6.11, freerdp-libs-2:2.2.0-7.el8_6.11, libwinpr-2:2.2.0-7.el8_6.11 +1
Show 8 more Red Hat advisories
  • RHSA-2026:60173 Released 2026-08-26 · Red Hat rating Important
    freerdp security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.4) freerdp-2:2.2.0-14.el8_4.2, freerdp-libs-2:2.2.0-14.el8_4.2, libwinpr-2:2.2.0-14.el8_4.2 +1
    • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) freerdp-2:2.2.0-14.el8_4.2, freerdp-libs-2:2.2.0-14.el8_4.2, libwinpr-2:2.2.0-14.el8_4.2 +1
  • RHSA-2026:58713 Released 2026-08-24 · Red Hat rating Important
    freerdp security update
    • Red Hat CodeReady Linux Builder EUS (v.9.6) freerdp-devel-2:2.11.7-1.el9_6.12, libwinpr-devel-2:2.11.7-1.el9_6.12
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) freerdp-2:2.11.7-1.el9_6.12, freerdp-libs-2:2.11.7-1.el9_6.12, libwinpr-2:2.11.7-1.el9_6.12
  • RHSA-2026:58710 Released 2026-08-24 · Red Hat rating Important
    freerdp security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.4) freerdp-2:2.11.2-1.el9_4.10, freerdp-libs-2:2.11.2-1.el9_4.10, libwinpr-2:2.11.2-1.el9_4.10
  • RHSA-2026:58712 Released 2026-08-24 · Red Hat rating Important
    freerdp security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) freerdp-2:2.4.1-6.el9_2.11, freerdp-libs-2:2.4.1-6.el9_2.11, libwinpr-2:2.4.1-6.el9_2.11
  • RHSA-2026:58711 Released 2026-08-24 · Red Hat rating Important
    freerdp security update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) freerdp-2:3.10.3-3.el10_0.11, freerdp-libs-2:3.10.3-3.el10_0.11, libwinpr-2:3.10.3-3.el10_0.11
    • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) freerdp-devel-2:3.10.3-3.el10_0.11, freerdp-server-2:3.10.3-3.el10_0.11, libwinpr-devel-2:3.10.3-3.el10_0.11
  • RHSA-2026:54487 Released 2026-08-13 · Red Hat rating Important
    freerdp security update
    • Red Hat Enterprise Linux AppStream (v. 9) freerdp-2:2.11.7-7.el9_8.5, freerdp-libs-2:2.11.7-7.el9_8.5, libwinpr-2:2.11.7-7.el9_8.5
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) freerdp-devel-2:2.11.7-7.el9_8.5, libwinpr-devel-2:2.11.7-7.el9_8.5
  • RHSA-2026:54485 Released 2026-08-13 · Red Hat rating Important
    freerdp security update
    • Red Hat Enterprise Linux AppStream (v. 8) freerdp-2:2.11.7-11.el8_10, freerdp-libs-2:2.11.7-11.el8_10, libwinpr-2:2.11.7-11.el8_10 +1
    • Red Hat Enterprise Linux CRB (v. 8) freerdp-devel-2:2.11.7-11.el8_10
  • RHSA-2026:54486 Released 2026-08-13 · Red Hat rating Important
    freerdp security update
    • Red Hat Enterprise Linux AppStream (v. 10) freerdp-2:3.10.3-12.el10_2.8, freerdp-libs-2:3.10.3-12.el10_2.8, libwinpr-2:3.10.3-12.el10_2.8
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) freerdp-devel-2:3.10.3-12.el10_2.8, freerdp-server-2:3.10.3-12.el10_2.8, libwinpr-devel-2:3.10.3-12.el10_2.8

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    FreeRDP 3.29.0

    21 records Highest priority Priority HIGH 11 HIGH, 9 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-47600 FreeRDP before 3.29.0 NULL Dereference via smartcard cleanupPriority HIGH 77
    • TI-2026-47597 FreeRDP before 3.29.0 Out-of-bounds Read via Polygon async message-proxyPriority HIGH 77
    • TI-2026-47595 FreeRDP before 3.29.0 Use-After-Free via WindowIcon async messagePriority HIGH 77
    Show all 21 records →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat CodeReady Linux Builder EUS (v.9.6)Fixed RHSA-2026:58713
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:54486
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2026:54485
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:54487
Red Hat Enterprise Linux AppStream AUS (v.8.4)Fixed RHSA-2026:60173
Red Hat Enterprise Linux AppStream AUS (v.8.6)Fixed RHSA-2026:61250
Red Hat Enterprise Linux AppStream E4S (v.8.8)Fixed RHSA-2026:61251
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2026:58712
Red Hat Enterprise Linux AppStream E4S (v.9.4)Fixed RHSA-2026:58710
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2026:58711
Red Hat Enterprise Linux AppStream EUS (v.9.6)Fixed RHSA-2026:58713
Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Fixed RHSA-2026:60173
Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)Fixed RHSA-2026:61250
Red Hat Enterprise Linux AppStream TUS (v.8.8)Fixed RHSA-2026:61251
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2026:54485
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2026:54486
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2026:54487
Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)Fixed RHSA-2026:58711
Red Hat Enterprise Linux Server (v. 7 ELS)Fixed RHSA-2026:62401
Red Hat Enterprise Linux Server Optional (v. 7 ELS)Fixed RHSA-2026:62401

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-67289
  2. 2026-10-03 Alias added: GHSA-3x8f-6ffv-v2wc
  3. 2026-10-04 EPSS moved to the below the 50th percentile

References

Exploit 1

Patch 1

  • TI-2026-85092 Use-after-free in FreeRDP rdpgfx channel close handling CVSS 4.0CRITICAL 9.3
  • TI-2026-85091 Out-of-bounds write in FreeRDP proxy via bitmap cache v2 capability CVSS 4.0CRITICAL 9.3
  • TI-2026-24435 FreeRDP has a `size_t` underflow in ADPCM decoder leads to heap-buffer-overflow write CVSS 3.1CRITICAL 9.8
  • TI-2023-21373 Out-Of-Bounds Write in FreeRDP CVSS 3.1CRITICAL 9.8
  • TI-2022-08692 Server side NTLM does not properly check parameters in FreeRDP CVSS 3.1CRITICAL 9.1
  • TI-2023-21374 Out-Of-Bounds Read in FreeRDP CVSS 3.1CRITICAL 9.1
See all 336 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences