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    CVE-2009-3026

    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.

    Published:Jan 15, 2009
    Last Modified:Apr 23, 2026
    EPS:Aug 31, 2009
    EPSS Score:0.00526
    CVSS Score:5

    Affected Products

    Vendor
    Pidgin
    Product
    Pidgin
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2019-25544 (CVSS 6.9) — Pidgin 2.13.0 contains a denial of service vulnerability that allows local attackers to crash the application …
    CVE-2022-26491 (CVSS 5.9) — An issue was discovered in Pidgin before 2.14.9. A remote attacker who can spoof DNS responses can redirect a …
    CVE-2017-2640 (CVSS 7.5) — An out-of-bounds write flaw was found in the way Pidgin before 2.12.0 processed XML content. A malicious remot…
    CVE-2016-2380 (CVSS 3.1) — An information leak exists in the handling of the MXIT protocol in Pidgin. Specially crafted MXIT data sent to…
    CVE-2016-4323 (CVSS 3.7) — A directory traversal exists in the handling of the MXIT protocol in Pidgin. Specially crafted MXIT data sent …
    CVE-2016-2374 (CVSS 8.1) — An exploitable memory corruption vulnerability exists in the handling of the MXIT protocol in Pidgin. Speciall…
    CVE-2016-2369 (CVSS 5.9) — A NULL pointer dereference vulnerability exists in the handling of the MXIT protocol in Pidgin. Specially craf…
    CVE-2016-2367 (CVSS 5.9) — An information leak exists in the handling of the MXIT protocol in Pidgin. Specially crafted MXIT data sent vi…
    CVE-2016-2368 (CVSS 8.1) — Multiple memory corruption vulnerabilities exist in the handling of the MXIT protocol in Pidgin. Specially cra…
    CVE-2016-2372 (CVSS 5.9) — An information leak exists in the handling of the MXIT protocol in Pidgin. Specially crafted MXIT data sent vi…

    References

    http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=542891
    http://developer.pidgin.im/ticket/8131
    http://developer.pidgin.im/viewmtn/revision/diff/312e056d702d29379ea61aea9d27765f127bc888/with/55897c4ce0787edc1e7721b7f4a9b5cbc8357279
    http://secunia.com/advisories/37071
    http://www.openwall.com/lists/oss-security/2009/08/24/2
    http://www.securityfocus.com/bid/36368
    https://exchange.xforce.ibmcloud.com/vulnerabilities/53000
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11070
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5757
    http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=542891
    http://developer.pidgin.im/ticket/8131
    http://developer.pidgin.im/viewmtn/revision/diff/312e056d702d29379ea61aea9d27765f127bc888/with/55897c4ce0787edc1e7721b7f4a9b5cbc8357279
    http://secunia.com/advisories/37071
    http://www.openwall.com/lists/oss-security/2009/08/24/2
    http://www.securityfocus.com/bid/36368
    https://exchange.xforce.ibmcloud.com/vulnerabilities/53000
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11070
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5757

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High