Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a mail header injection vulnerability when a message is forwarded as an attachment. The subject of the forwarded message was used verbatim to generate the attachment name, so a received message whose subject contains CRLF sequences could inject arbitrary MIME part headers into the outgoing message. Upstream fixed this in the commit “Fix mail header injection via subject of a message forwarded as attachment”, which collapses whitespace in the generated name.
CVE-2026-114717
MEDIUMNVD 5.85.8Trending — 4 sources updated this week
EchelonGraph scoreMEDIUM confidence
“—” beside the score: it is equal to NVD's CVSS score.
This medium-severity CVE scores 5.8 under NVD CVSS v3. EPSS exploit probability: 0.4% (38th percentile of EPSS-scored CVEs). GitHub Security Advisory CVSS 4.0 is lower than this score; a lower GitHub score revises it only when its advisory is newer than the CVE record's last change, and this advisory (published 2026-10-22) is not newer than that change (2026-10-30), so it does not.
Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Also known asEUVD-2026-107809 (ENISA EUVD) · GHSA-8246-wqv2-g48f (GitHub Security Advisories)Source: ENISA EUVD
5.8EG
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: 0.4%CVSS: 5.8Exploit: None knownExposed services: Not assessed
A fix is available — apply it.
- CVSS v3
- 5.8
- EG Score
- 5.8MEDIUMmedium confidence
- EG Risk
- 26EG Risk 26/100
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)Severity58% × 45%Impact severity (EG Severity): CVSS 5.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation0.3% × 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
- 0.4%
- EPSS %ILE
- 38th
- 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 (5.8): severity, escalated by confirmed exploitation. This CVE's 5.8 is its impact severity (EG Severity), not escalated.
- EG Severity
- 5.8 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. 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
October 30, 2026
Advisory Details (6)
Auto-updated Oct 22, 2026Patch available. Sources: github_commit, github_release.
Web page
Security updates 1.6.20 and 1.7.5 released
https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5GitHub release Patch Available
Roundcube Webmail 1.7.5
Patch available: roundcube/roundcubemail 1.7.5
https://github.com/roundcube/roundcubemail/releases/tag/1.7.5GitHub release Patch Available
Roundcube Webmail 1.6.20
Patch available: roundcube/roundcubemail 1.6.20
https://github.com/roundcube/roundcubemail/releases/tag/1.6.20GitHub commit
commit c325953a251d (roundcube/roundcubemail)
Fix landed in roundcube/roundcubemail commit c325953a251d — awaiting tagged release
https://github.com/roundcube/roundcubemail/commit/c325953a251d0132f1909569b3eac0b974095dd4GitHub commit
commit 4c3291ce9df9 (roundcube/roundcubemail)
Fix landed in roundcube/roundcubemail commit 4c3291ce9df9 — awaiting tagged release
https://github.com/roundcube/roundcubemail/commit/4c3291ce9df9e1d3b45330d0854d65cd8efbeee9Web pageMentions a patch (unverified)
#1151279 - roundcube: Multiple security vulnerabilities - Debian Bug report logs
https://bugs.debian.org/1151279Vendor Advisories for CVE-2026-114717(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 14× in last 7d / 25× 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.
- 2026-11-02 16:44 UTCEPSS rescoreEPSS 0.4% · 38th percentile
- 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.4% · 38th percentile
- 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.4% · 30th percentile
- 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-10-30 15:26 UTCEG score recompute▲ 1.80
- 2026-10-30 15:26 UTCGHSA enrichmentGHSA-8246-wqv2-g48f · GitHub CVSS 4.0
- 2026-10-30 15:26 UTCNVD updateCVSS v3 → 5.8
- 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-10-26 20:34 UTCEG score recompute
- 2026-10-26 20:34 UTCGHSA enrichmentGHSA-8246-wqv2-g48f · GitHub CVSS 4.0
- 2026-10-26 19:49 UTCEG score recompute
- 2026-10-26 19:49 UTCGHSA enrichmentGHSA-8246-wqv2-g48f · GitHub CVSS 4.0
- 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-10-25 14:50 UTCEG score recompute
- 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.3% · 21st percentile
- 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.3% · 21st percentile
- 2026-10-22 17:10 UTCEG score recompute
- 2026-10-22 17:09 UTCGHSA enrichmentGHSA-8246-wqv2-g48f · GitHub CVSS 4.0
- 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.3% · 21st percentile
- 2026-10-22 02:25 UTCEG score recompute
- 2026-10-22 01:37 UTCEG score recomputeFirst assessed: 4.0 MEDIUM
- 2026-10-22 01:35 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-114717?
CVE-2026-114717 is a medium-severity vulnerability; its CVE record was published on October 22, 2026. Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a mail header injection vulnerability when a message is forwarded as an attachment. The subject of the forwarded message was used verbatim to generate the attachment name, so a received message whose subject contains CRLF…
When was the CVE record for CVE-2026-114717 published?
The CVE record for CVE-2026-114717 was published on October 22, 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 October 30, 2026; the record at its source may have been updated since.
Is CVE-2026-114717 actively exploited?
CVE-2026-114717 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (38th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-114717?
CVE-2026-114717 has a CVSS v3 base score of 5.8 (NVD).
How do I remediate CVE-2026-114717?
A fix for CVE-2026-114717 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-114717 are linked in the Vendor Advisories panel on this page.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-114717
Is Your Infrastructure Affected by CVE-2026-114717?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.