Git Credential Manager (GCM) is a secure Git credential helper built on .NET that runs on Windows, macOS, and Linux. The Git credential protocol is text-based over standard input/output, and consists of a series of lines of key-value pairs in the format key=value. Git's documentation restricts the use of the NUL (\0) character and newlines to form part of the keys or values. When Git reads from standard input, it considers both LF and CRLF as newline characters for the credential protocol by virtue of calling strbuf_getline that calls to strbuf_getdelim_strip_crlf. Git also validates that a newline is not present in the value by checking for the presence of the line-feed character (LF, \n), and errors if this is the case. This captures both LF and CRLF-type newlines. Git Credential Manager uses the .NET standard library StreamReader class to read the standard input stream line-by-line and parse the key=value credential protocol format. The implementation of the ReadLineAsync method considers LF, CRLF, and CR as valid line endings. This is means that .NET considers a single CR as a valid newline character, whereas Git does not. This mismatch of newline treatment between Git and GCM means that an attacker can craft a malicious remote URL. When a user clones or otherwise interacts with a malicious repository that requires authentication, the attacker can capture credentials for another Git remote. The attack is also heightened when cloning from repositories with submodules when using the --recursive clone option as the user is not able to inspect the submodule remote URLs beforehand. This issue has been patched in version 2.6.1 and all users are advised to upgrade. Users unable to upgrade should only interact with trusted remote repositories, and not clone with --recursive to allow inspection of any submodule URLs before cloning those submodules.
CVE-2024-50338
“—” beside the score: it is equal to NVD's CVSS score.
Score 7.4 from GitHub Security Advisory (severity: HIGH) published 2025-01-14. NVD baseline CVSS 7.4; sources differ by 0.0.
Also known asEUVD-2025-0069 (ENISA EUVD) · GHSA-86c2-4x57-wc8g (GitHub Security Advisories)Source: ENISA EUVD
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.4
- EG Score
- 7.4HIGHmedium confidence
- EG Risk
- 35EG Risk 35/100
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)Severity74% × 45%Impact severity (EG Severity): CVSS 7.4 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation3.2% × 40%FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.Automatability0% × 15%CISA's SSVC Automatable value: no (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.Exploitation none (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
- 3.2%
- EPSS %ILE
- 88th
- 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 (7.4): severity, escalated by confirmed exploitation. This CVE's 7.4 is its impact severity (EG Severity), not escalated.
- EG Severity
- 7.4 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
- EG Likelihood
- 3.2% 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 every mission impact level.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 every mission impact level.
A fix is available. Apply it within your standard update timelines.
Exploitation none (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
January 14, 2025
Last Modified
April 15, 2026
Advisory Details (8)
Auto-updated Oct 19, 2026StreamReader Class (System.IO) | Microsoft Learn
https://learn.microsoft.com/en-us/dotnet/api/system.io.streamreader?view=net-8.0git/credential.c at 6a11438f43469f3815f2f0fc997bd45792ff04c0 · git/git · GitHub
https://github.com/git/git/blob/6a11438f43469f3815f2f0fc997bd45792ff04c0/credential.c#L311Carriage-return character in remote URL allows malicious repository to leak credentials · Advisory · git-ecosystem/git-credential-manager · GitHub
https://github.com/git-ecosystem/git-credential-manager/security/advisories/GHSA-86c2-4x57-wc8gGCM 2.6.1
Patch available: git-ecosystem/git-credential-manager v2.6.1
https://github.com/git-ecosystem/git-credential-manager/releases/tag/v2.6.1Comparing 749e287571c78a2b61f926ccce6a707050871ab8...99e2f7f60e7364fe807e7925f361a81f3c47bd1b · git-ecosystem/git-credential-manager · GitHub
https://github.com/git-ecosystem/git-credential-manager/compare/749e287571c78a2b61f926ccce6a707050871ab8...99e2f7f60e7364fe807e7925f361a81f3c47bd1bgit-credential-manager/src/shared/Core/StreamExtensions.cs at ae009e11a0fbef804ad9f78816d84a0bc7e052fe · git-ecosystem/git-credential-manager · GitHub
https://github.com/git-ecosystem/git-credential-manager/blob/ae009e11a0fbef804ad9f78816d84a0bc7e052fe/src/shared/Core/StreamExtensions.cs#L138-L141runtime/src/libraries/System.Private.CoreLib/src/System/IO/StreamReader.cs at e476b43b5cb42eb44ce23b1c7b793aa361624cf6 · dotnet/runtime · GitHub
https://github.com/dotnet/runtime/blob/e476b43b5cb42eb44ce23b1c7b793aa361624cf6/src/libraries/System.Private.CoreLib/src/System/IO/StreamReader.cs#L926Vendor Advisories for CVE-2024-50338(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(1)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| nuget | git-credential-manager @ 2.6.1 (fixes <= 2.6.0) | — | 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)
NuGet(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| git-credential-manager | 0.1.0 ... 2.6.0 (18 versions) |
| — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 41× 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 94 of 230 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. 6 repeat rows among the latest 100 are merged into the row they repeat. The 136 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 3.2% · 88th percentile
- 2026-11-01 08:11 UTCGHSA enrichmentGHSA-86c2-4x57-wc8g · GitHub severity HIGH · GitHub CVSS 7.4
- 2026-11-01 08:11 UTCEG score recompute
- 2026-10-31 16:30 UTCEPSS rescoreEPSS 3.2% · 88th percentile
- 2026-10-30 16:32 UTCEPSS rescoreEPSS 3.2% · 88th percentile
- 2026-10-29 16:31 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-10-28 16:29 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-10-27 17:44 UTCEG score recompute
- 2026-10-27 17:44 UTCVendor advisory
- 2026-10-27 16:30 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-10-26 16:29 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-10-25 16:58 UTCEG score recompute
- 2026-10-25 16:30 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-10-24 16:30 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-10-23 16:30 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-10-22 16:31 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-10-21 16:30 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-10-20 16:30 UTCEPSS rescoreEPSS 3.2% · 88th percentile
- 2026-10-19 17:58 UTCEG score recompute
- 2026-10-19 17:58 UTCVendor advisory
- 2026-10-19 16:30 UTCEPSS rescoreEPSS 3.2% · 88th percentile
- 2026-10-18 16:30 UTCEPSS rescoreEPSS 3.2% · 88th percentile
- 2026-10-18 06:54 UTCEG score recompute
- 2026-10-17 16:31 UTCEPSS rescoreEPSS 3.2% · 88th percentile
- 2026-10-16 16:37 UTCEPSS rescoreEPSS 3.2% · 88th percentile
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- 2026-10-15 16:30 UTCEPSS rescoreEPSS 3.2% · 88th percentile
- 2026-10-14 16:30 UTCEPSS rescoreEPSS 3.2% · 88th percentile
- 2026-10-13 16:31 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-10-12 17:41 UTCEG score recompute
- 2026-10-12 16:31 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-10-11 21:07 UTCEG score recompute
- 2026-10-11 15:59 UTCEG score recompute
- 2026-10-11 13:46 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-10-10 19:58 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-10-09 20:05 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-10-08 17:08 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-10-07 23:46 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-10-07 03:05 UTCOSV refresh
- 2026-10-06 15:16 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-10-05 17:41 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-10-04 23:20 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-10-03 14:24 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-10-02 16:16 UTCEG score recompute
- 2026-10-01 19:48 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-09-30 15:02 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-09-29 15:18 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-09-28 13:50 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-09-27 13:44 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-09-26 15:57 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-09-24 14:01 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-09-23 13:46 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-09-22 14:47 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-09-20 20:14 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-09-19 15:40 UTCEPSS rescoreEPSS 3.2% · 87th percentile
- 2026-09-18 19:26 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-09-17 19:27 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-09-17 08:50 UTCOSV refresh
- 2026-09-16 14:06 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-09-16 05:12 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-09-15 03:08 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-09-13 16:45 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-09-12 14:59 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-09-11 14:51 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-09-11 09:35 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-09-10 09:33 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-09-08 21:58 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-09-07 16:00 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-09-06 13:46 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-09-04 13:59 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-09-04 05:05 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-09-02 14:10 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-09-01 13:52 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-09-01 04:37 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-08-30 19:16 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-08-30 01:20 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-08-29 09:13 UTCOSV refresh
- 2026-08-28 21:39 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-08-27 14:23 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-08-26 14:44 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-08-25 13:47 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-08-24 14:15 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-08-23 00:18 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-08-21 23:47 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-08-20 22:54 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-08-19 17:02 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-08-18 13:46 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-08-17 13:45 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-08-16 14:54 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-08-16 02:13 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-08-15 01:29 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-08-13 21:59 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-08-12 20:43 UTCOSV refresh
- 2026-08-12 13:49 UTCEPSS rescoreEPSS 3.3% · 87th percentile
- 2026-08-11 13:40 UTCEPSS rescoreEPSS 3.3% · 87th percentile
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2024-50338?
When was the CVE record for CVE-2024-50338 published?
Is CVE-2024-50338 actively exploited?
What is the CVSS score of CVE-2024-50338?
How do I remediate CVE-2024-50338?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2024-50338
Is Your Infrastructure Affected by CVE-2024-50338?
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