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CVE-2019-8338

17
FAUCET Score

CVE-2019-8338 describes a critical flaw in the Airmail GPG-PGP Plugin, versions 1.0 (9) and earlier, where signature verification routines are bypassed, enabling remote attackers to spoof email signatures. This medium-severity vulnerability (CVSS 5.9) allows for high integrity impact by failing to verify signature status or the validity of signing keys, even permitting the injection of fake user IDs into a user's keyring. Despite its potential impact, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.0\(9\)CPE matchmatch criteria
cpe:2.3:a:gpg-pgp_project:gpg-pgp:*:*:*:*:*:airmail:*:*

CVSS Data

CVSS version used by this source: 3.0

5.9MEDIUM

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.73%
Probability of exploitation in next 30 days
EPSS Percentile
75.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0173 is in the 53rd percentile among its peer group of 19,955 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

packetstormsecurity.com / files/152703/Johnny-You-Are-Fired.html
Third Party AdvisoryVDB Entry
seclists.org / fulldisclosure/2019/Apr/38
Mailing ListThird Party Advisory
github.com / Airmail/AirmailPlugIn-Framework/commits/master
PatchThird Party Advisory
github.com / RUB-NDS/Johnny-You-Are-Fired
Third Party Advisory
github.com / RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf
Third Party Advisory
openwall.com / lists/oss-security/2019/04/30/4
Mailing ListThird Party Advisory