CVE-2024-49395

Mutt: neomutt: bcc email header field is indirectly leaked by cryptographic info block

5.3 MediumFix available

In mutt and neomutt, PGP encryption does not use the --hidden-recipient mode which may leak the Bcc email header field by inferring from the recipients info.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: None
Availability: None

Exploit likelihood

0.30%Up 0.3 points since Nov 12, 2024

What each source reports

CVE List Score used 5.3

Mutt: neomutt: bcc email header field is indirectly leaked by cryptographic info block

In mutt and neomutt, PGP encryption does not use the --hidden-recipient mode which may leak the Bcc email header field by inferring from the recipients info.

Record: CVE-2024-49395
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-1230
Updated: 2026-11-06

EUVDEUVD-2024-43422 5.3

In mutt and neomutt, PGP encryption does not use the --hidden-recipient mode which may leak the Bcc email header field by inferring from the recipients info.

Record: EUVD-2024-43422
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-06

GitHub AdvisoriesGHSA-88hm-mv53-m5h7 5.3

In mutt and neomutt, PGP encryption does not use the --hidden-recipient mode which may leak the...

In mutt and neomutt, PGP encryption does not use the --hidden-recipient mode which may leak the Bcc email header field by inferring from the recipients info.

Record: GHSA-88hm-mv53-m5h7
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-1230
Updated: 2026-11-02

NVD 5.3

In mutt and neomutt, PGP encryption does not use the --hidden-recipient mode which may leak the Bcc email header field by inferring from the recipients info.

Record: CVE-2024-49395
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-1230
Updated: 2026-11-06

OSV 5.3

In mutt and neomutt, PGP encryption does not use the --hidden-recipient mode which may leak the Bcc email header field by inferring from the recipients info.

Record: CVE-2024-49395
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

OSVDEBIAN-CVE-2024-49395 5.3

In mutt and neomutt, PGP encryption does not use the --hidden-recipient mode which may leak the Bcc email header field by inferring from the recipients info.

Record: DEBIAN-CVE-2024-49395
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-07

OSVUBUNTU-CVE-2024-49395 5.3

In mutt and neomutt, PGP encryption does not use the --hidden-recipient mode which may leak the Bcc email header field by inferring from the recipients info.

Record: UBUNTU-CVE-2024-49395
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

OSVCLSA-2026-1783344253 No score

mutt: Fix of CVE-2024-49395

CVE-2024-49395: show encryption information block to prevent Bcc recipient leak

Record: CLSA-2026-1783344253
Updated: 2026-11-02

OSVCLSA-2026-1783694989 No score

mutt: Fix of CVE-2024-49395

CVE-2024-49395: fix missing display of encryption recipients in GPGME

Record: CLSA-2026-1783694989
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`mutt` TuxCare:AlmaLinux:9.2	before 5:2.2.6-1.el9_2.tuxcare.els2	5:2.2.6-1.el9_2.tuxcare.els2
`mutt` TuxCare:AlmaLinux:9.6	before 5:2.2.6-2.el9_6.tuxcare.els2	5:2.2.6-2.el9_6.tuxcare.els2
`mutt` Debian:12	All versions, plus listed versions 2.2.12-0.12.2.12-0.1~deb12u12.2.13-12.2.9-12.2.9-1+deb12u1 Show 4 moreShow less 2.3.2-12.4.0-12.4.1-12.4.1-1.1	None known
`mutt` Debian:13	All versions, plus listed versions 2.2.13-12.2.13-1+deb13u12.2.13-1+deb13u22.3.2-12.4.0-12.4.1-12.4.1-1.1	None known
`mutt` Debian:14	All versions, plus listed versions 2.2.13-12.3.2-12.4.0-12.4.1-12.4.1-1.1	None known
`neomutt` Debian:12	All versions, plus listed versions 20220429+dfsg1-4.120231103+dfsg1-120240425+dfsg-120240425+dfsg-220241002+dfsg-1 Show 23 moreShow less 20241002+dfsg-1~bpo12+120241114+dfsg-120241114+dfsg1-120241212+dfsg-120241212+dfsg-220250109+dfsg-120250113+dfsg-120250113+dfsg-1~bpo12+120250404+dfsg-120250404+dfsg-1~bpo12+120250404+dfsg-220250404+dfsg-2~bpo12+120250404+dfsg-2~bpo12+220250510+dfsg-120250510+dfsg-220250510+dfsg-2~bpo12+120250905+dfsg-120251211+dfsg-120260105+dfsg-120260105+dfsg-1~bpo13+120260406+dfsg-120260504+dfsg-120260616+dfsg-1	None known
`neomutt` Debian:13	All versions, plus listed versions 20250510+dfsg-220250905+dfsg-120251211+dfsg-120260105+dfsg-120260105+dfsg-1~bpo13+120260406+dfsg-120260504+dfsg-120260616+dfsg-1	None known
`neomutt` Debian:14	All versions, plus listed versions 20250510+dfsg-220250905+dfsg-120251211+dfsg-120260105+dfsg-120260105+dfsg-1~bpo13+120260406+dfsg-120260504+dfsg-120260616+dfsg-1	None known
`mutt` Ubuntu:Pro:16.04:LTS	All versions, plus listed versions 1.5.23-3.1ubuntu11.5.23-3.1ubuntu21.5.24-11.5.24-1build11.5.24-1ubuntu0.1 Show 7 moreShow less 1.5.24-1ubuntu0.21.5.24-1ubuntu0.31.5.24-1ubuntu0.41.5.24-1ubuntu0.51.5.24-1ubuntu0.61.5.24-1ubuntu0.6+esm21.5.24-1ubuntu0.6+esm3	None known
`mutt` Ubuntu:Pro:18.04:LTS	All versions, plus listed versions 1.8.3+neomutt20170609-2build11.9.1-21.9.1-31.9.1-41.9.1-5 Show 11 moreShow less 1.9.2-11.9.3-11.9.4-21.9.4-31.9.4-3ubuntu0.11.9.4-3ubuntu0.21.9.4-3ubuntu0.31.9.4-3ubuntu0.41.9.4-3ubuntu0.51.9.4-3ubuntu0.61.9.4-3ubuntu0.6+esm1	None known

Show 13 moreShow less

Affected packages
Package	Affected	Fixed
`neomutt` Ubuntu:Pro:18.04:LTS	All versions, plus listed versions 20171027-120171027-220171027+dfsg.1-120171027+dfsg.1-220171027+dfsg.1-4 Show 4 moreShow less 20171208+dfsg.1-120171208+dfsg.1-220171215+dfsg.1-120171215+dfsg.1-1ubuntu0.1~esm1	None known
`mutt` Ubuntu:20.04:LTS	All versions, plus listed versions 1.10.1-2.11.12.2-11.12.2-21.13.0-11.13.2-1 Show 6 moreShow less 1.13.2-1ubuntu0.11.13.2-1ubuntu0.21.13.2-1ubuntu0.31.13.2-1ubuntu0.41.13.2-1ubuntu0.51.13.2-1ubuntu0.6	None known
`neomutt` Ubuntu:Pro:20.04:LTS	All versions, plus listed versions 20180716+dfsg.1-1.220191111+dfsg.1-120191207+dfsg.1-1.120191207+dfsg.1-1.1ubuntu0.1~esm1	None known
`mutt` Ubuntu:22.04:LTS	All versions, plus listed versions 2.0.5-4.1build12.1.3-12.1.4-12.1.4-1build12.1.4-1ubuntu1.12.1.4-1ubuntu1.2	None known
`neomutt` Ubuntu:Pro:22.04:LTS	All versions, plus listed versions 20201127+dfsg.1-1.220211029+dfsg1-120211029+dfsg1-1ubuntu0.1~esm1	None known
`mutt` Ubuntu:24.04:LTS	All versions, plus listed versions 2.2.9-12.2.9-1ubuntu0.23.10.12.2.12-0.12.2.12-0.1build22.2.12-0.1build32.2.12-0.1build4	None known
`neomutt` Ubuntu:Pro:24.04:LTS	All versions, plus listed versions 20220429+dfsg1-4.120231103+dfsg1-120231103+dfsg1-1build220231103+dfsg1-1build320231103+dfsg1-1ubuntu0.1~esm1	None known
`mutt` Ubuntu:25.10	All versions, plus listed versions 2.2.13-1	None known
`neomutt` Ubuntu:25.10	All versions, plus listed versions 20250113+dfsg-120250404+dfsg-220250510+dfsg-2	None known
`mutt` Ubuntu:26.10	All versions, plus listed versions 2.2.13-1build22.3.2-12.4.0-12.4.1-1	None known
`neomutt` Ubuntu:26.10	All versions, plus listed versions 20260105+dfsg-1build120260504+dfsg-120260616+dfsg-1	None known
`mutt` Ubuntu:26.04:LTS	All versions, plus listed versions 2.2.13-12.2.13-1build12.2.13-1build2	None known
`neomutt` Ubuntu:26.04:LTS	All versions, plus listed versions 20250510+dfsg-220250905+dfsg-120251211+dfsg-120260105+dfsg-120260105+dfsg-1build1	None known

History

History
Recorded	Changed	Sources
Nov 6, 2026	facts	CVE List, EUVD
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2024-49395 is a medium vulnerability (CVSS 5.3) in Mutt, published November 12, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.30%, the 23rd percentile. Fixed in mutt 5:2.2.6-1.el9_2.tuxcare.els2.

References

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