The mjml PyPI package, found at the FelixSchwarz/mjml-python GitHub repo, is an unofficial Python port of MJML, a markup language created by Mailjet. All users of FelixSchwarz/mjml-python who insert untrusted data into mjml templates unless that data is checked in a very strict manner. User input like <script> would be rendered as `` in the final HTML output. The attacker must be able to control some data which is later injected in an mjml template which is then send out as email to other users. The attacker could control contents of email messages sent through the platform. The problem has been fixed in version 0.11.0 of this library. Versions before 0.10.0 are not affected by this security issue. As a workaround, ensure that potentially untrusted user input does not contain any sequences which could be rendered as HTML.
CVE-2024-26151
“—” beside the score: it is equal to NVD's CVSS score.
Score 8.2 from GitHub Security Advisory (severity: HIGH) published 2024-02-22. NVD baseline CVSS 8.2; sources differ by 0.0.
Also known asEUVD-2024-0518 (ENISA EUVD) · GHSA-578p-fxmm-6229 (GitHub Security Advisories)Source: ENISA EUVD
- CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
A fix is available — apply it.
- CVSS v3
- 8.2
- EG Score
- 8.2HIGHmedium confidence
- EG Risk
- 53EG Risk 53/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity82% × 45%Impact severity (EG Severity): CVSS 8.2 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation40% × 40%EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.Automatability0% × 15%CISA's SSVC Automatable value: no (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is available. Apply it within your standard update timelines. - EPSS PROB
- 0.6%
- EPSS %ILE
- 49th
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (8.2): severity, escalated by confirmed exploitation. This CVE's 8.2 is its impact severity (EG Severity), not escalated.
- EG Severity
- 8.2 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
- EG Likelihood
- 0.6% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-31). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.
The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
February 22, 2024
Last Modified
February 5, 2025
Advisory Details (5)
Auto-updated Sep 7, 2026Potentially untrusted input is rendered as HTML in final output · Advisory · FelixSchwarz/mjml-python · GitHub
Affected: version 0.11.0 of this library. Versions before 0.10.0 are not affected by this s
https://github.com/FelixSchwarz/mjml-python/security/advisories/GHSA-578p-fxmm-62290.11.0 - CVE-2024-26151
Patch available: FelixSchwarz/mjml-python v0.11.0
https://github.com/FelixSchwarz/mjml-python/releases/tag/v0.11.0Escaped HTML tags are "un-escaped" when rendering HTML · Issue #52 · FelixSchwarz/mjml-python · GitHub
https://github.com/FelixSchwarz/mjml-python/issues/52commit 8d410b7a5007 (FelixSchwarz/mjml-python)
Patch available: FelixSchwarz/mjml-python v0.11.0 (contains commit 8d410b7a5007)
https://github.com/FelixSchwarz/mjml-python/commit/8d410b7a500703080bb14ed7e3d2663fe16767e6commit 84c495da20a9 (FelixSchwarz/mjml-python)
Patch available: FelixSchwarz/mjml-python v0.10.0 (contains commit 84c495da20a9)
https://github.com/FelixSchwarz/mjml-python/commit/84c495da20a91640a1ca551ace17df7f3be644aaPatch Availability(1)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| pip | mjml @ 0.11.0 (fixes = 0.10.0) | — | ghsa |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
PyPI(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| mjml | 0.10.0 |
| — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 38× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 97 of 209 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 3 repeat rows among the latest 100 are merged into the row they repeat. The 112 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-11-01 16:31 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-11-01 08:15 UTCGHSA enrichmentGHSA-578p-fxmm-6229 · GitHub severity HIGH · GitHub CVSS 8.2
- 2026-11-01 08:15 UTCEG score recompute
- 2026-10-31 16:30 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-30 16:31 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-29 16:30 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-28 16:29 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-28 04:38 UTCEG score recompute
- 2026-10-27 16:29 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-26 16:29 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-25 17:16 UTCEG score recompute
- 2026-10-25 16:30 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-24 16:30 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-23 16:29 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-22 16:31 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-21 16:29 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-20 20:21 UTCEG score recompute
- 2026-10-20 16:30 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-19 16:29 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-18 07:23 UTCEG score recompute
- 2026-10-17 16:30 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-16 16:36 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-15 16:29 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-14 16:30 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-13 16:30 UTCEPSS rescoreEPSS 0.6% · 48th percentile
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- 2026-10-12 18:00 UTCEG score recompute
- 2026-10-12 16:31 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-11 23:24 UTCOSV refresh
- 2026-10-11 21:24 UTCEG score recompute
- 2026-10-11 16:18 UTCEG score recompute
- 2026-10-11 13:45 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-10 19:58 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-09 20:05 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-08 17:07 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-06 15:15 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-05 17:41 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-04 23:20 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-03 14:23 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-01 19:48 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-30 16:59 UTCEG score recompute
- 2026-09-30 15:01 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-29 15:17 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-28 13:49 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-24 14:01 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-23 13:46 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-09-22 07:45 UTCOSV refresh
- 2026-09-20 20:14 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-09-16 14:06 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-09-16 05:11 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-15 03:08 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-13 16:45 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-12 14:59 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-11 14:51 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-11 09:34 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-08 21:58 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-07 15:59 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-05 15:26 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-04 13:58 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-04 05:05 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-03 04:59 UTCOSV refresh
- 2026-09-02 14:10 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-01 13:52 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-08-30 19:15 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-08-30 01:20 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-08-28 21:39 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-08-27 14:23 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-08-26 14:44 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-08-25 13:47 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-08-23 00:17 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-08-21 23:47 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-08-20 22:53 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-08-19 17:02 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-08-18 13:46 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-08-17 13:45 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-08-16 18:26 UTCOSV refresh
- 2026-08-16 14:54 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-08-16 02:12 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-08-15 01:28 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-08-13 21:58 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-08-12 13:49 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-08-11 13:40 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-08-09 13:45 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-08-08 16:35 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-08-06 13:45 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-08-05 19:15 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-08-04 15:08 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-08-04 10:36 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-08-03 10:34 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-08-02 02:25 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-08-01 12:06 UTCOSV refresh
- 2026-08-01 04:14 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-07-30 16:26 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-07-30 01:29 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-07-28 15:34 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-07-27 14:11 UTCEPSS rescoreEPSS 0.6% · 46th percentile
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Frequently asked(5)
What is CVE-2024-26151?
When was the CVE record for CVE-2024-26151 published?
Is CVE-2024-26151 actively exploited?
What is the CVSS score of CVE-2024-26151?
How do I remediate CVE-2024-26151?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2024-26151
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