CVE-2026-52023

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Source
https://cve.org/CVERecord?id=CVE-2026-52023
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-52023.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-52023
Downstream
Published
2026-09-01T00:00:00Z
Modified
2026-09-17T08:15:52Z
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_registrar_pcscf module, specifically the pcscf_save_pending/save_pending path and security-agreement parsing in sec_agree.c:parse_sec_agree()

Database specific 
{
    "cna_assigner":  "mitre",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52023.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
722c06b3efc53ccb369ce812c685c7d069508187
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/cve-osv-conversion/osv-output/CVE-2026-52023.json"
vanir_signatures 
[
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "116828194652683753321392469441402438381",
            "length":  2418
        },
        "id":  "CVE-2026-52023-2763edb5",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/kamailio/kamailio/commit/722c06b3efc53ccb369ce812c685c7d069508187",
        "target":  {
            "file":  "src/modules/ims_registrar_pcscf/sec_agree.c",
            "function":  "parse_sec_agree"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "12084986634156765647148718525276466660",
                "32583586127040675767447764902947172589",
                "99837190248917914247791332185218599524",
                "68358940947506617454460800044141755231",
                "284157240479457830649001255956373266583",
                "4130054736324508012714598798075168888",
                "145158083848719949532104817046020224795",
                "323176148634908985472422518036879308055",
                "183923856432614665773152632610454871038",
                "176118923420743935934794763867172260337",
                "229512807910842828314101454005520128274"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-52023-ca501d7a",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/kamailio/kamailio/commit/722c06b3efc53ccb369ce812c685c7d069508187",
        "target":  {
            "file":  "src/modules/ims_registrar_pcscf/sec_agree.c"
        }
    }
]
vanir_signatures_modified 
"2026-09-17T08:15:52Z"