CVE-2022-26499

Name: CVE-2022-26499
Creator: NVD / NIST
Published: 2022-04-15T05:15:06.64+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 7.27%

Last modified Jun 17, 2026

CVE-2022-26499 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. 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. EPSS estimates a 7.27% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.1/10

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

EPSS Probability

7.27%

93.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-918

Affected Software

Vendor	Product	Versions
Digium	Asterisk	>= 16.15.0, <= 16.25.1
Digium	Asterisk	>= 18.0, < 18.11.2
Digium	Asterisk	>= 19.0.0, <= 19.3.1
Debian	Debian Linux	10.0
Debian	Debian Linux	11.0

References

http://packetstormsecurity.com/files/166745/Asterisk-Project-Security-Advisory-AST-2022-002.htmlPatch, Third Party Advisory, VDB Entry
https://downloads.asterisk.org/pub/security/Vendor Advisory
https://downloads.asterisk.org/pub/security/AST-2022-002.htmlPatch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00021.htmlIssue Tracking, Third Party Advisory
https://www.debian.org/security/2022/dsa-5285Third Party Advisory
http://packetstormsecurity.com/files/166745/Asterisk-Project-Security-Advisory-AST-2022-002.htmlPatch, Third Party Advisory, VDB Entry
https://downloads.asterisk.org/pub/security/Vendor Advisory
https://downloads.asterisk.org/pub/security/AST-2022-002.htmlPatch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2022/11/msg00021.htmlIssue Tracking, Third Party Advisory
https://www.debian.org/security/2022/dsa-5285Third Party Advisory

Timeline

Published: Apr 15, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-26499?

How severe is CVE-2022-26499?

CVE-2022-26499 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 7.27% probability of exploitation in the next 30 days.

How do I fix CVE-2022-26499?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-26499?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST