How many CVEs have patched challenge?

2 published CVEs changed challenge in ZenHive/mpp, in 2 distinct patches totalling 4 changed lines, between 2026 and 2026.

What is the latest CVE that changed challenge?

CVE-2026-87119 (mpp Tempo subscription key authorization is not bound to the issuing challenge, allowing a captured activation credential to be replayed), published 2026-09-22, changed lines 47 of lib/mpp/telemetry.ex.

How does challenge compare to the rest of ZenHive/mpp?

ZenHive/mpp has 13 CVEs with a located fix in total; 2 of them changed challenge.

What do the line numbers refer to?

Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

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Challenge

challenge in ZenHive/mpp: Patched by 2 CVEs

ZenHive/mpp

Function

challenge

Name: challenge in ZenHive/mpp: CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

lib/mpp/telemetry.ex

Last patched September 22, 2026

CVEs

That changed this function

Distinct patches

Backports counted once

Lines changed

Added plus removed

2026

Years

By CVE publication date

Overview

challenge in ZenHive/mpp was changed by 2 published CVE fixes in 2026, in 2 distinct patches that added or removed 4 lines in total.

ZenHive/mpp has 13 CVEs with a located fix in total, so 15% of them touched this function.

CVEs that patched it

Every published CVE whose fix changed challenge, newest first, with the lines each fix touched.

mpp Tempo subscription key authorization is not bound to the issuing challenge, allowing a captured activation credential to be replayed
CVE-2026-87119 · line 47 · +1 −1
High · CVSS 8.2
EPSS 0.6%2026-09-22
Session voucher adding no new funds is accepted without a charge in mpp, serving paid resources for free
CVE-2026-89420 · line 48 · +1 −1
High · CVSS 7.1
EPSS 0.4%2026-09-22

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Other functions in these files

Functions in the same file that CVE fixes also changed.

1integerlib/mpp/telemetry.ex2 CVEs · 2 patches2026
2receiptlib/mpp/telemetry.ex2 CVEs · 2 patches2026
3verify_faillib/mpp/telemetry.ex2 CVEs · 2 patches2026
4verify_oklib/mpp/telemetry.ex2 CVEs · 2 patches2026
5verify_startlib/mpp/telemetry.ex2 CVEs · 2 patches2026
6challenge_metadatalib/mpp/telemetry.ex1 CVEs · 1 patches2026

Other hotspots in the repository

Functions in ZenHive/mpp changed by the most CVE fixes.

maybe_validate_fee_payer_economics3 CVEs · lib/mpp/methods/tempo.ex non_neg_integer3 CVEs · lib/mpp/methods/tempo/fee_payer_policy.ex map2 CVEs · lib/mpp/plug.ex verify2 CVEs · lib/mpp/methods/tempo.ex validate_intent2 CVEs · lib/mpp/plug.ex intent_name2 CVEs · lib/mpp/plug.ex

All patched functions in ZenHive/mpp

Frequently asked questions

Common questions about CVE fixes to challenge.

How many CVEs have patched challenge?: 2 published CVEs changed challenge in ZenHive/mpp, in 2 distinct patches totalling 4 changed lines, between 2026 and 2026.
What is the latest CVE that changed challenge?: CVE-2026-87119 (mpp Tempo subscription key authorization is not bound to the issuing challenge, allowing a captured activation credential to be replayed), published 2026-09-22, changed lines 47 of lib/mpp/telemetry.ex.
How does challenge compare to the rest of ZenHive/mpp?: ZenHive/mpp has 13 CVEs with a located fix in total; 2 of them changed challenge.
What do the line numbers refer to?: Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

References

lib/mpp/telemetry.ex on GitHub (opens in a new tab)
All patched functions in ZenHive/mpp
Patched functions directory

Fix locations are computed by RadicalNotion.AI from the upstream patch diff of each CVE. CVE data is sourced from the CVE Program.

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On this page

Overview
CVEs that patched it
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