CVE-2026-52022

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Source
https://cve.org/CVERecord?id=CVE-2026-52022
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-52022.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-52022
Downstream
Published
2026-09-01T00:00:00Z
Modified
2026-09-06T08:07:57Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

An issue in kamailio v.6.1.1 and before allows a remote attacker to cause a denial of service via the IMS P-CSCF registration handling components

Database specific 
{
    "cna_assigner":  "mitre",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52022.json"
}
References

Affected packages

Git / github.com/kamailio/kamailio

Affected ranges

Type
GIT
Repo
https://github.com/kamailio/kamailio
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
91c5ca751799db4f25a28a495350cc97f7c2f390
Database specific
Show details 
{
    "cpe":  "cpe:2.3:a:kamailio:kamailio:*:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "last_affected":  "6.1.1"
        }
    ],
    "source":  [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

3.*
3.0_pre1
Other
after_0_9_4_pkg_merge
after_makefile_merges
after_testing_0_8_12_r0_merge
after_testing_0_8_12_r1_merge
after_xl
before_db_api_changes
before_dest_info_changes_2
before_kill_repl_add_rm
before_lumps_split
before_malloc_changes
before_new_timers
before_replication_patch
before_socket_info_lists
before_str2ip_changes
before_tcp_port_aliases
before_testing_0_8_12_r0_merge
before_testing_0_8_12_r1_merge
before_tm_timers
before_xl
bflmpsvz
bigbang
bogdan_final_version
budvar
fixstats
gpled
ipv4_working
ipv6
last_merge_to_janakj
listen_ifs
mem-fixes
myself_port_lo
new_cfg_compiles
new_hash
new_timers
old_mod_iface
post-zt
pre-bigbang
pre-zt
pre22
pre6-tcp4
pre6-tcp5-tm
pre_fixstats
pregpl
rel_0_8_11_root
rel_0_9_0_root
ser_0-8-6-4
ser_081-plugins
ser_082
ser_0839_errors
ser_0_7
ser_0_8_10
ser_0_8_10_pre2
ser_0_8_10_pre3
ser_0_8_10_pre4
ser_0_8_10_pre5
ser_0_8_3_1
ser_0_8_3_2
ser_0_8_6-5-stable
ser_0_8_6-6-beer-release
ser_0_8_7-0-unstable
ser_0_8_8-final-cd-release
ser_0_8_9
ser_0_8_9-release
sip_083
sip_pre-plugin
sr_before_modules_merge
sr_simpleconfig
srv
tcp2
testing_0_8_12_root
tmp_pcl_tag_17368Js8
v03
v0_2
v0_8_11_pre9
v0_8_11dev34
v0_8_11pre29
v0_8_11pre29-prerelease
v0_8_11pre29-prerelease-cd
v0_8_11pre8
v0_8_12_t02_merged_w_v0_8_11pre35
v0_8_12dev-t03
v0_8_12dev_t05
v0_8_12dev_t13
v0_8_13dev-t16
v0_8_8
wo_sp
sr_3.*
sr_3.1_freeze

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-52022.json"
vanir_signatures 
[
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "125518537483774565992938065193219014130",
            "length":  961
        },
        "id":  "CVE-2026-52022-2f402eaf",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/kamailio/kamailio/commit/91c5ca751799db4f25a28a495350cc97f7c2f390",
        "target":  {
            "file":  "src/modules/ims_usrloc_pcscf/usrloc.c",
            "function":  "bind_usrloc"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "216675546907776856518266329497123269671",
            "length":  697
        },
        "id":  "CVE-2026-52022-6f60c8ef",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/kamailio/kamailio/commit/91c5ca751799db4f25a28a495350cc97f7c2f390",
        "target":  {
            "file":  "src/modules/ims_usrloc_pcscf/pcontact.c",
            "function":  "free_security"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "87966889822828453077019162359258502099",
                "144845778018568705734936397068010541019",
                "37707670054391189582248894453730484740",
                "305086005739633749219265787557731796268"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-52022-97cd1764",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/kamailio/kamailio/commit/91c5ca751799db4f25a28a495350cc97f7c2f390",
        "target":  {
            "file":  "src/modules/ims_usrloc_pcscf/usrloc.c"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "74008760402000258209107808633887485100",
                "313272144214067375275876774212077173672",
                "207216520678018625425430307036242845594",
                "157503833130542147550103246495820373738",
                "220164467482345107550156306235979548238",
                "270853031531404410161225549019550037094",
                "221420835195486618572936289790169204691"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-52022-c06e6856",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/kamailio/kamailio/commit/91c5ca751799db4f25a28a495350cc97f7c2f390",
        "target":  {
            "file":  "src/modules/ims_usrloc_pcscf/usrloc.h"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "58145258059990616583934443736316514894",
                "291913640052494821625719281299958973867",
                "18179337824236489755613445391978769060",
                "78289462677175590726252035625239328642",
                "291269615414246282649256626604504771139",
                "170760002304851566211891388688310050250",
                "48078006340597503320635266867163064864",
                "22007803796790978051271130926876556580",
                "258441416083362208756473811022978221426",
                "300347241837194113191141166713068499089",
                "60176269707692166760309140059283812460",
                "61248428501513939861724592072034009368",
                "105647074229181165154643824856843014990",
                "126184676408050728748163117370741456089",
                "21855281101974610118909790110199738057",
                "3346536848732547151066659734276502685",
                "29739516415627364386480459750404288238",
                "233395740415599494030231449841036187425",
                "183878233815189370557316941666624062786"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-52022-f629ca19",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/kamailio/kamailio/commit/91c5ca751799db4f25a28a495350cc97f7c2f390",
        "target":  {
            "file":  "src/modules/ims_usrloc_pcscf/pcontact.c"
        }
    }
]
vanir_signatures_modified 
"2026-09-06T08:07:57Z"