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Vulnerability record · CVE-2022-26499 · published 15 April 2022

CVE-2022-26499: Digium asterisk server-side request forgery (ssrf) vulnerability

Digium · Asterisk

An SSRF issue was discovered in Asterisk through 19.x. When using STIR/SHAKEN, it's possible to send arbitrary requests (such as GET) to interfaces such as localhost by using the Identity header. This is fixed in 16.25.2, 18.11.2, and 19.3.2.

9.1 CVSS 3.1 Critical EPSS 7.8% · top 5.5% CWE-918 · Server-side request forgery (SSRF)
9.1CVSS 3.1 base score, v2 6.4
7.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
10References
17 Jun 2026Last modified by NVD

Description

An SSRF issue was discovered in Asterisk through 19.x. When using STIR/SHAKEN, it's possible to send arbitrary requests (such as GET) to interfaces such as localhost by using the Identity header. This is fixed in 16.25.2, 18.11.2, and 19.3.2.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/166745/Asterisk-Project-Security-Advisory-AST-2022-002.html PatchThird Party AdvisoryVDB Entry
https://downloads.asterisk.org/pub/security/ Vendor Advisory
https://downloads.asterisk.org/pub/security/AST-2022-002.html PatchVendor Advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html Issue TrackingThird Party Advisory
https://www.debian.org/security/2022/dsa-5285 Third Party Advisory
http://packetstormsecurity.com/files/166745/Asterisk-Project-Security-Advisory-AST-2022-002.html PatchThird Party AdvisoryVDB Entry
https://downloads.asterisk.org/pub/security/ Vendor Advisory
https://downloads.asterisk.org/pub/security/AST-2022-002.html PatchVendor Advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html Issue TrackingThird Party Advisory
https://www.debian.org/security/2022/dsa-5285 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2022-26499), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.