CVE-2026-115207

MEDIUMPre-NVD 5.55.5
EchelonGraph scoreHIGH confidence

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

Score 5.5 from GitHub Security Advisory (severity: MODERATE) published 2026-10-22. A secondary CVSS source baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — Patch released this week

Also known asEUVD-2026-108112 (ENISA EUVD) · GHSA-m74w-h57v-xv36 (GitHub Security Advisories)Source: ENISA EUVD

5.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A flaw was found in GNU patch. An attacker can achieve arbitrary file creation outside the intended working directory by enticing a user or automated workflow to apply a specially crafted patch file. Due to missing validation during automatic patch reversal, absolute file paths in patch headers are accepted rather than rejected. Consequently, the utility can create files in arbitrary locations with the permissions of the executing user.

CVSS v3
5.5
EG Score
5.5MEDIUMhigh confidence
EG Risk
25
EG Risk 25/100

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)
Severity55% × 45%
Impact severity (EG Severity): CVSS 5.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 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
0.2%
EPSS %ILE
8th
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 (5.5): severity, escalated by confirmed exploitation. This CVE's 5.5 is its impact severity (EG Severity), not escalated.

EG Severity
5.5 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-11). 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

October 22, 2026

Last Modified

November 12, 2026

Advisory Details (2)

Auto-updated Oct 22, 2026
Patch available. Sources: redhat.
Red Hat

2558775 – (CVE-2026-115207) CVE-2026-115207 patch: Filename validation bypass in reversal fallback allows file creation outside the working directory

https://bugzilla.redhat.com/show_bug.cgi?id=2558775
Red HatMentions a patch (unverified)

CVE-2026-115207 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-115207

Vendor Advisories for CVE-2026-115207(2)

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 / EcosystemFix (by version range) / PatchReleasedSource
redhatpatch-0:2.7.6-12.el8_102026-11-09redhat

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

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
patch2.7.6-7, 2.8-1, 2.8-2, 2.8.1-1
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
patch2.8-2, 2.8-2+deb13u1, 2.8.1-1
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
patch2.8-2
  • every version up to 2.8.1-1: fixed in 2.8.1-1
—

Weakness Classification(1)

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

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 13× in last 7d / 37× 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 its CVE.org record (CNA or CISA ADP). 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). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

  1. 2026-11-13 16:50 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  2. 2026-11-12 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  3. 2026-11-12 06:28 UTCEchelonGraph re-scored
  4. 2026-11-12 06:28 UTCVendor advisory
  5. 2026-11-12 06:28 UTCGHSA enrichmentGHSA-m74w-h57v-xv36 · GitHub severity MODERATE · GitHub CVSS 5.5
  6. 2026-11-12 06:02 UTCEchelonGraph re-scored
  7. 2026-11-12 06:02 UTCVendor advisory
  8. 2026-11-12 06:02 UTCGHSA enrichmentGHSA-m74w-h57v-xv36 · GitHub severity MODERATE · GitHub CVSS 5.5
  9. 2026-11-11 16:38 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  10. 2026-11-10 16:42 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  11. 2026-11-09 17:28 UTCEchelonGraph re-scored
  12. 2026-11-09 17:28 UTCGHSA enrichmentGHSA-m74w-h57v-xv36 · GitHub severity MODERATE · GitHub CVSS 5.5
  13. 2026-11-09 16:45 UTCEchelonGraph re-scored
  14. 2026-11-09 16:45 UTCGHSA enrichmentGHSA-m74w-h57v-xv36 · GitHub severity MODERATE · GitHub CVSS 5.5
  15. 2026-11-09 16:34 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  16. 2026-11-08 16:38 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  17. 2026-11-07 16:38 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  18. 2026-11-06 16:36 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  19. 2026-11-05 17:28 UTCEchelonGraph re-scored
  20. 2026-11-05 17:28 UTCVendor advisory
  21. 2026-11-05 17:28 UTCGHSA enrichmentGHSA-m74w-h57v-xv36 · GitHub severity MODERATE · GitHub CVSS 5.5
  22. 2026-11-05 16:36 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  23. 2026-11-05 16:35 UTCEchelonGraph re-scored
  24. 2026-11-05 16:35 UTCVendor advisory
  25. 2026-11-05 16:35 UTCGHSA enrichmentGHSA-m74w-h57v-xv36 · GitHub severity MODERATE · GitHub CVSS 5.5
Show 26 more
  1. 2026-11-04 16:34 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  2. 2026-11-03 16:46 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  3. 2026-11-02 18:53 UTCEchelonGraph re-scored
  4. 2026-11-02 18:53 UTCGHSA enrichmentGHSA-m74w-h57v-xv36 · GitHub severity MODERATE · GitHub CVSS 5.5
  5. 2026-11-02 16:44 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  6. 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  7. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  8. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  9. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  10. 2026-10-28 03:28 UTCEchelonGraph re-scored
  11. 2026-10-28 03:28 UTCGHSA enrichmentGHSA-m74w-h57v-xv36 · GitHub CVSS 5.5
  12. 2026-10-28 02:25 UTCEchelonGraph re-scored
  13. 2026-10-28 02:25 UTCGHSA enrichmentGHSA-m74w-h57v-xv36 · GitHub CVSS 5.5
  14. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  15. 2026-10-26 18:49 UTCEchelonGraph re-scored
  16. 2026-10-26 18:49 UTCGHSA enrichmentGHSA-m74w-h57v-xv36 · GitHub CVSS 5.5
  17. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  18. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  19. 2026-10-25 14:50 UTCEchelonGraph re-scored
  20. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  21. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  22. 2026-10-22 16:07 UTCEchelonGraph re-scored
  23. 2026-10-22 16:07 UTCGHSA enrichmentGHSA-m74w-h57v-xv36 · GitHub CVSS 5.5
  24. 2026-10-22 11:26 UTCEchelonGraph re-scored
  25. 2026-10-22 10:23 UTCEchelonGraph re-scoredFirst assessed: 5.5 MEDIUM
  26. 2026-10-22 10:20 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-115207?
CVE-2026-115207 is a medium-severity vulnerability; its CVE record was published on October 22, 2026. A flaw was found in GNU patch. An attacker can achieve arbitrary file creation outside the intended working directory by enticing a user or automated workflow to apply a specially crafted patch file. Due to missing validation during automatic patch reversal, absolute file paths in patch headers are…
When was CVE-2026-115207 made public?
CVE-2026-115207 was made public on October 22, 2026: that is the date its CVE record's CNA, Red Hat, Inc., gives for when the vulnerability was made public. The CVE record itself was published on October 22, 2026. EchelonGraph's copy of the record carries a last-modified date of November 12, 2026; the record at its source may have been updated since.
Is CVE-2026-115207 actively exploited?
CVE-2026-115207 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (8th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-115207?
CVE-2026-115207 has a CVSS base score of 5.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-115207?
A fix for CVE-2026-115207 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-115207 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-115207

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