CVE-2026-44844

MEDIUMNVD 6.36.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

This medium-severity CVE scores 6.3 under NVD CVSS v3. EPSS exploit probability: 0.4% (35th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
Elevated
6.3EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 6.3Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

eml_parser serves as a python module for parsing eml files and returning various information found in the e-mail as well as computed information. Prior to 3.0.1, EmlParser.get_raw_body_text() recurses unconditionally for every nested message/rfc822 attachment without any depth limit. An attacker who can supply a badly crafted EML file with approximately 120 nested message/rfc822 parts triggers an unhandled RecursionError and aborts parsing of the message. A 12 KB EML file is enough to crash a worker. Though this causes the parser to crash, it is an unlikely scenario as the suggested EML that crashes the parser would not pass basic RFC compliance tests. This vulnerability is fixed in 3.0.1.

CVSS v3
6.3
EG Score
6.3MEDIUMmedium confidence
EG Risk
44
EG Risk 44/100

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)
Severity63% × 45%
Impact severity (EG Severity): CVSS 6.3 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
0.4%
EPSS %ILE
35th
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 (6.3): severity, escalated by confirmed exploitation. This CVE's 6.3 is its impact severity (EG Severity), not escalated.

EG Severity
6.3 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
0.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). 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: 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.

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

May 26, 2026

Last Modified

July 24, 2026

Advisory Details (1)

Auto-updated Jun 15, 2026
Patch available. Sources: github.
GitHub advisoryMentions a patch (unverified)

Recursion DoS via nested message/rfc822 attachments · Advisory · GOVCERT-LU/eml_parser · GitHub

https://github.com/GOVCERT-LU/eml_parser/security/advisories/GHSA-g47v-rwmh-r9f8

Vendor Advisories for CVE-2026-44844(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
eml-parser0.9 ... 3.0.0 (40 versions)
  • every version up to 3.0.1: fixed in 3.0.1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 29× 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 99 of 174 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. 1 repeat row among the latest 100 is merged into the row it repeats. The 75 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  2. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  3. 2026-10-18 03:38 UTCEG score recompute
  4. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  5. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  6. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  7. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  8. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  9. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  10. 2026-10-12 16:04 UTCEG score recompute
  11. 2026-10-11 19:47 UTCEG score recompute
  12. 2026-10-11 17:01 UTCEG score recompute
  13. 2026-10-11 14:27 UTCEG score recompute
  14. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  15. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  16. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  17. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  18. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  19. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  20. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  21. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  22. 2026-10-03 19:51 UTCOSV refresh
  23. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  24. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  25. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 34th percentile
Show 74 more
  1. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  2. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  3. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  4. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  5. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  6. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  7. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  8. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  9. 2026-09-14 09:37 UTCEG score recompute
  10. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  11. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  12. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  13. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  14. 2026-09-11 01:53 UTCOSV refresh
  15. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  16. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  17. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  18. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  19. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  20. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  21. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  22. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  23. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  24. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  25. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  26. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  27. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  28. 2026-08-23 15:56 UTCEG score recompute
  29. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  30. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  31. 2026-08-21 21:20 UTCEG score recompute
  32. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  33. 2026-08-20 17:58 UTCEG score recompute
  34. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  35. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  36. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  37. 2026-08-17 09:30 UTCEG score recompute
  38. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  39. 2026-08-16 06:01 UTCEG score recompute
  40. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  41. 2026-08-15 03:51 UTCEG score recompute
  42. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  43. 2026-08-14 01:40 UTCEG score recompute
  44. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  45. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  46. 2026-08-12 11:42 UTCEG score recompute
  47. 2026-08-11 09:25 UTCEG score recompute
  48. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  49. 2026-08-10 07:11 UTCEG score recompute
  50. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  51. 2026-08-09 05:01 UTCEG score recompute
  52. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  53. 2026-08-08 02:51 UTCEG score recompute
  54. 2026-08-07 00:41 UTCEG score recompute
  55. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  56. 2026-08-05 21:00 UTCEG score recompute
  57. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  58. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  59. 2026-08-04 10:38 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  60. 2026-08-02 18:30 UTCEG score recompute
  61. 2026-08-02 02:27 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  62. 2026-08-01 16:19 UTCEG score recompute
  63. 2026-08-01 04:16 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  64. 2026-07-31 09:31 UTCEG score recompute
  65. 2026-07-30 16:28 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  66. 2026-07-30 01:30 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  67. 2026-07-29 16:33 UTCEG score recompute
  68. 2026-07-28 15:36 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  69. 2026-07-27 14:13 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  70. 2026-07-26 14:54 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  71. 2026-07-26 07:44 UTCEG score recompute
  72. 2026-07-25 14:18 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  73. 2026-07-24 14:17 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  74. 2026-07-23 14:18 UTCEPSS rescoreEPSS 0.4% · 32nd percentile

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-44844?
CVE-2026-44844 is a medium-severity vulnerability; its CVE record was published on May 26, 2026. emlparser serves as a python module for parsing eml files and returning various information found in the e-mail as well as computed information. Prior to 3.0.1, EmlParser.getrawbodytext() recurses unconditionally for every nested message/rfc822 attachment without any depth limit. An attacker who…
When was the CVE record for CVE-2026-44844 published?
The CVE record for CVE-2026-44844 was published on May 26, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 24, 2026; the record at its source may have been updated since.
Is CVE-2026-44844 actively exploited?
CVE-2026-44844 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (35th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-44844?
CVE-2026-44844 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-44844?
A fix for CVE-2026-44844 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-44844 are linked in the Vendor Advisories panel on this page.

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