CVE-2024-24784Network attack vector

Trust-decision bypass via retained address comments

Published Mar 5, 2024 · Updated Feb 13, 2025

Input interpretation error in net/mail before 1.21.8 and 1.22.0-0 through 1.22.0 allows remote attackers to alter trust decisions. The address phrase parser admits reserved parentheses as atom characters and retains comments in display names instead of removing them as comment syntax. Exposure requires an application to parse attacker-controlled addresses and make a security decision that disagrees with a conforming parser.

CVSS severity7.5
High
EPSS probability1.05%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Input interpretation error in net/mail before 1.21.8 and 1.22.0-0 through 1.22.0 allows remote attackers to alter trust decisions. The address phrase parser admits reserved parentheses as atom characters and retains comments in display names instead of removing them as comment syntax. Exposure requires an application to parse attacker-controlled addresses and make a security decision that disagrees with a conforming parser.

The record

CVE
CVE-2024-24784
Published
Mar 5, 2024
Updated
Feb 13, 2025
Vendor
Go standard library
Product
net/mail
Classifications
Unavailable
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 5, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <1.21.8
  2. Affected versionversion=1.22.0-0 <1.22.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Go standard library · net/mailversion=0 <1.21.8; version=1.22.0-0 <1.22.1

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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