CVE-2026-47255
AgenticMail API/storage and outbound relay hardening
AgenticMail gives AI agents real email addresses and phone numbers. @agenticmail/api prior to version 0.9.32 and @agenticmail/core prior to version 0.9.10 had weakness related to validation and and binding of inactive-agent hour filtering; storage SQL identifier validation; metadata-backed ownership checks for raw storage SQL; blocking direct storage metadata access through raw SQL; fail-closed outbound worker secret handling; SMTP envelope/header control-character validation before command construction; and TLS certificate verification as the default for MailSender with an explicit opt-out for local development. @agenticmail/api prior to version 0.9.32 and @agenticmail/core prior to version 0.9.10 are patched.
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
- None
- Integrity
- High
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
8.2
AgenticMail API/storage and outbound relay hardening
AgenticMail gives AI agents real email addresses and phone numbers. @agenticmail/api prior to version 0.9.32 and @agenticmail/core prior to version 0.9.10 had weakness related to validation and and binding of inactive-agent hour filtering; storage SQL identifier validation; metadata-backed ownership checks for raw storage SQL; blocking direct storage metadata access through raw SQL; fail-closed outbound worker secret handling; SMTP envelope/header control-character validation before command construction; and TLS certificate verification as the default for MailSender with an explicit opt-out for local development. @agenticmail/api prior to version 0.9.32 and @agenticmail/core prior to version 0.9.10 are patched.
- Record
CVE-2026-47255- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L - Weakness
- CWE-20, CWE-89, CWE-284, CWE-319, CWE-798
- Updated
- 2026-11-02
EUVDEUVD-2026-46121
8.2
AgenticMail gives AI agents real email addresses and phone numbers. @agenticmail/api prior to version 0.9.32 and @agenticmail/core prior to version 0.9.10 had weakness related to validation and and binding of inactive-agent hour filtering; storage SQL identifier validation; metadata-backed ownership checks for raw storage SQL; blocking direct storage metadata access through raw SQL; fail-closed outbound worker secret handling; SMTP envelope/header control-character validation before command construction; and TLS certificate verification as the default for MailSender with an explicit opt-out for local development. @agenticmail/api prior to version 0.9.32 and @agenticmail/core prior to version 0.9.10 are patched.
- Record
EUVD-2026-46121- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-wjjv-3mj2-39hf No score
AgenticMail API/storage and outbound relay hardening fixes
The current upstream main branch at commit 7e0206d was reviewed, and the fix-first patch set was rebased on 2026-05-18. The patches cover: validated and bound inactive-agent hour filtering; storage SQL identifier validation; metadata-backed ownership checks for raw storage SQL; blocking direct storage metadata access through raw SQL; fail-closed outbound worker secret handling; SMTP envelope/header control-character validation before command construction; and TLS certificate verification as the default for MailSender with an explicit opt-out for local development. Validation completed locally with targeted API/Core security tests plus API/Core builds. The security patch branch was not published publicly because te repository's SECURITY.md asks reporters not to open public vulnerability issues.
- Record
GHSA-wjjv-3mj2-39hf- Weakness
- CWE-20, CWE-89, CWE-284, CWE-319, CWE-798
- Updated
- 2026-11-02
NVD
8.2
AgenticMail gives AI agents real email addresses and phone numbers. @agenticmail/api prior to version 0.9.32 and @agenticmail/core prior to version 0.9.10 had weakness related to validation and and binding of inactive-agent hour filtering; storage SQL identifier validation; metadata-backed ownership checks for raw storage SQL; blocking direct storage metadata access through raw SQL; fail-closed outbound worker secret handling; SMTP envelope/header control-character validation before command construction; and TLS certificate verification as the default for MailSender with an explicit opt-out for local development. @agenticmail/api prior to version 0.9.32 and @agenticmail/core prior to version 0.9.10 are patched.
- Record
CVE-2026-47255- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L - Weakness
- CWE-20, CWE-89, CWE-284, CWE-319, CWE-798
- Updated
- 2026-11-02
OSV
8.2
AgenticMail API/storage and outbound relay hardening
AgenticMail gives AI agents real email addresses and phone numbers. @agenticmail/api prior to version 0.9.32 and @agenticmail/core prior to version 0.9.10 had weakness related to validation and and binding of inactive-agent hour filtering; storage SQL identifier validation; metadata-backed ownership checks for raw storage SQL; blocking direct storage metadata access through raw SQL; fail-closed outbound worker secret handling; SMTP envelope/header control-character validation before command construction; and TLS certificate verification as the default for MailSender with an explicit opt-out for local development. @agenticmail/api prior to version 0.9.32 and @agenticmail/core prior to version 0.9.10 are patched.
- Record
CVE-2026-47255- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L - Weakness
- CWE-20, CWE-284, CWE-319, CWE-798, CWE-89
- Updated
- 2026-11-02
OSVGHSA-wjjv-3mj2-39hf No score
AgenticMail API/storage and outbound relay hardening fixes
The current upstream main branch at commit 7e0206d was reviewed, and the fix-first patch set was rebased on 2026-05-18. The patches cover: validated and bound inactive-agent hour filtering; storage SQL identifier validation; metadata-backed ownership checks for raw storage SQL; blocking direct storage metadata access through raw SQL; fail-closed outbound worker secret handling; SMTP envelope/header control-character validation before command construction; and TLS certificate verification as the default for MailSender with an explicit opt-out for local development. Validation completed locally with targeted API/Core security tests plus API/Core builds. The security patch branch was not published publicly because te repository's SECURITY.md asks reporters not to open public vulnerability issues.
- Record
GHSA-wjjv-3mj2-39hf- Weakness
- CWE-20, CWE-284, CWE-319, CWE-798, CWE-89
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
@agenticmail/apinpm |
through 0.9.31 | 0.9.32 |
@agenticmail/corenpm |
through 0.9.9 | 0.9.10 |
@agenticmail/apinpm |
before 0.9.32 | 0.9.32 |
@agenticmail/corenpm |
before 0.9.10 | 0.9.10 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-47255 is a high vulnerability (CVSS 8.2) in Agenticmail @agenticmail/api, published May 29, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.25%, the 16th percentile. Fixed in @agenticmail/api 0.9.32.
References
github.com/agenticmail/agenticmail/security/advisories/GHSA-wjjv-3mj2-39hf
github.com/agenticmail/agenticmail/commit/1408de543fa3577d8c2d4fdb289c75fe6faafac7
github.com/agenticmail/agenticmail/commit/234b811e426a0743170f3b10bc43419d64330155
github.com/agenticmail/agenticmail/commit/6c70c8254c906f823392d7f5ccee88a5481e7731
github.com/agenticmail/agenticmail/commit/8cb053f2307dd77b7736ffa0d7df04b0ccc3272d
github.com/agenticmail/agenticmail/blob/7b9b05d973676e9f3d097c08b8e649f59bfc15d0/CHANGELOG.md?plain=1
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github.com/agenticmail/agenticmail/blob/7b9b05d973676e9f3d097c08b8e649f59bfc15d0/packages/core/src/mail/sender.ts
github.com/advisories/GHSA-wjjv-3mj2-39hf
github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47255.json
nvd.nist.gov/vuln/detail/CVE-2026-47255
github.com/agenticmail/agenticmail