CVE-2026-40481: monetr is a budgeting application for recurring expenses

Q: How do I fix CVE-2026-40481?

monetr: upgrade to 1.12.4. Exact commands for each OS are on this page.

Q: Is CVE-2026-40481 being exploited?

CVE-2026-40481 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-40481 affect?

CVE-2026-40481 affects monetr. Severity is high (CVSS 7.5). monetr is a budgeting application for recurring expenses. In versions 1.12.3 and below, the public Stripe webhook endpoint buffers the entire request body into memory before validating the Stripe signature. A remote unauthenticated attacker

Q: How urgent is CVE-2026-40481?

Priority 46/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 7.5REMOTEUPGRADE

CVE-2026-40481 is a high-severity flaw (CVSS 7.5) affecting monetr. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

monetr is a budgeting application for recurring expenses. In versions 1.12.3 and below, the public Stripe webhook endpoint buffers the entire request body into memory before validating the Stripe signature. A remote unauthenticated attacker can send oversized POST payloads to cause uncontrolled memory growth, leading to denial of service. The issue affects deployments with Stripe webhooks enabled and is mitigated if an upstream proxy enforces a r

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 61%)
CISA exploited list	No
Weakness	CWE-400
Published	2026-04-17
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: monetr

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-17 23:16 UTCPublished CVE record published
2026-06-17 10:45 UTCUpdated Record last modified

monetr monetr UPGRADE

Affected: < 1.12.4

Fixed in: 1.12.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy monetr || rpm -q monetr || monetr --version

2. UPGRADE to 1.12.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade monetr

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade monetr

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-40481?

monetr: upgrade to 1.12.4. Exact commands for each OS are on this page.

Is CVE-2026-40481 being exploited?

CVE-2026-40481 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-40481 affect?

CVE-2026-40481 affects monetr. Severity is high (CVSS 7.5). monetr is a budgeting application for recurring expenses. In versions 1.12.3 and below, the public Stripe webhook endpoint buffers the entire request body into memory before validating the Stripe signature. A remote unauthenticated attacker

How urgent is CVE-2026-40481?

Priority 46/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Stripe vulnerabilities

Related CVEs

CVE-2026-41644 HIGH 7.1 UPGRADE monetr is a budgeting application for recurring expenses

References

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