protocols/jabber/auth.c in libpurple in Pidgin 2.6.0, and possibly other versions, does…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · None · None
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
protocols/jabber/auth.c in libpurple in Pidgin 2.6.0, and possibly other versions, does not follow the "require TLS/SSL" preference when connecting to older Jabber servers that do not follow the XMPP specification, which causes libpurple to connect to the server without the expected encryption and allows remote attackers to sniff sessions.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 1 advisory
- RHSA-2009:1453 Released 2009-09-21 · Red Hat rating Moderatepidgin security update
- Red Hat Enterprise Linux AS version 4 finch-2.6.2-2.el4, finch-2.6.2-2.el4.i386, finch-2.6.2-2.el4.ia64 +33
- Red Hat Enterprise Linux Desktop (v. 5 client) finch-2.6.2-2.el5, finch-2.6.2-2.el5.i386, libpurple-2.6.2-2.el5 +9
- Red Hat Enterprise Linux Desktop Workstation (v. 5 client) finch-devel-2.6.2-2.el5, finch-devel-2.6.2-2.el5.i386, libpurple-devel-2.6.2-2.el5 +4
- Red Hat Enterprise Linux Desktop version 4 finch-2.6.2-2.el4, finch-2.6.2-2.el4.i386, finch-devel-2.6.2-2.el4 +15
- Red Hat Enterprise Linux ES version 4 finch-2.6.2-2.el4, finch-2.6.2-2.el4.i386, finch-2.6.2-2.el4.ia64 +24
- Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) finch-2.6.2-2.el5, finch-2.6.2-2.el5.i386, finch-devel-2.6.2-2.el5 +15
- Red Hat Enterprise Linux WS version 4 finch-2.6.2-2.el4, finch-2.6.2-2.el4.i386, finch-2.6.2-2.el4.ia64 +24
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux AS version 4 | Fixed | RHSA-2009:1453 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2009:1453 |
| Red Hat Enterprise Linux Desktop Workstation (v. 5 client) | Fixed | RHSA-2009:1453 |
| Red Hat Enterprise Linux Desktop version 4 | Fixed | RHSA-2009:1453 |
| Red Hat Enterprise Linux ES version 4 | Fixed | RHSA-2009:1453 |
| Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) | Fixed | RHSA-2009:1453 |
| Red Hat Enterprise Linux WS version 4 | Fixed | RHSA-2009:1453 |
Timeline
- 2026-10-02 Threatist record created from CVE-2009-3026
- 2026-10-03 Alias added: GHSA-39qg-c7hm-9wwf
References
More Pidgin vulnerabilities
- TI-2019-15597 Pidgin 2.13.0 Denial of Service via Malformed Username CVSS 4.0MEDIUM 6.9
- TI-2009-02576 The msn_slplink_process_msg function in libpurple/protocols/msn/slplink.c in libpurple… CVSS 2.0HIGH 10.0
- TI-2013-05439 The SIMPLE protocol functionality in Pidgin before 2.10.8 allows remote attackers to have… CVSS 2.0HIGH 10.0
- TI-2009-01309 Multiple integer overflows in the msn_slplink_process_msg functions in the MSN protocol… CVSS 2.0HIGH 9.3
- TI-2017-01890 Out-of-bounds write in pidgin CVSS 3.0CRITICAL 9.8
- TI-2011-02815 gtkutils.c in Pidgin before 2.10.0 on Windows allows user-assisted remote attackers to… CVSS 2.0HIGH 9.3
Sources
- CVE-2009-3026 · CVE Program
- CVE-2009-3026 · NVD
- FIRST EPSS
- GHSA-39qg-c7hm-9wwf · GitHub Advisory Database · CC BY 4.0
- CVE-2009-3026 · Red Hat security data · CC BY 4.0
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