Guzzle is an extensible PHP HTTP client. Prior to 7.15.2 and 8.0.1, Guzzle gives a transport the request URI as text and supplies the Host header separately. The cURL handlers set CURLOPT_URL to the URI exactly as written and push that Host into CURLOPT_HTTPHEADER; StreamHandler does the same through fopen(). libcurl then parses the authority itself, percent-decoding it and, on an IDN-capable build, applying IDNA mapping, and uses the result to resolve, connect, name the TLS peer and address a proxy CONNECT, while the supplied Host suppresses the aligned one libcurl would have generated. For a URI host written as 127.0.0.%31, filter_var() rejects the host as an IP literal, yet libcurl decodes it to 127.0.0.1 and reaches loopback with no DNS lookup while the server receives Host: 127.0.0.%31. An attacker who influences a fetched URI can therefore reach a host the application's checks excluded and read whatever the host exposes of the response. The same divergence moves Guzzle's own decisions onto a spelling the transport does not use: no_proxy selects proxy routing from the literal host, and RedirectMiddleware decides from it whether to strip Authorization and Cookie. Exploitation requires the application to build a request URI from untrusted input and to make a host decision before handing it to Guzzle. This issue is fixed in versions 7.15.2 and 8.0.1.
CVE-2026-69246
“—” beside the score: it is equal to the CVSS score beside it.
Score 7.2 from GitHub Security Advisory (severity: HIGH) published 2026-08-03. A secondary CVSS source baseline 7.2; sources differ by 0.0.
Also known asEUVD-2026-52445 (ENISA EUVD) · GHSA-v5mv-p594-2x33 (GitHub Security Advisories)Source: ENISA EUVD
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.2
- EG Score
- 7.2HIGHmedium confidence
- EG Risk
- 48EG Risk 48/100
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)Severity72% × 45%Impact severity (EG Severity): CVSS 7.2 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation0.4% × 40%FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.Automatability100% × 15%CISA's SSVC Automatable value: yes (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).Exploitation none (CISA Vulnrichment) · Automatable yes (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 at low or medium mission impact and sooner than that at high. - EPSS PROB
- 0.4%
- EPSS %ILE
- 30th
- 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 (7.2): severity, escalated by confirmed exploitation. This CVE's 7.2 is its impact severity (EG Severity), not escalated.
- EG Severity
- 7.2 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
- EG Likelihood
- 0.4% 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; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days 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; Attend at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation none (CISA Vulnrichment) · Automatable yes (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)14 days if the affected system is publicly exposed; 60 days if it is not.
The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (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
August 3, 2026
Last Modified
September 8, 2026
Advisory Details (7)
Auto-updated Aug 3, 2026Noncanonical host can bypass host-based checks in guzzlehttp/guzzle · Advisory · guzzle/guzzle · GitHub
https://github.com/guzzle/guzzle/security/advisories/GHSA-v5mv-p594-2x338.0.1
Patch available: guzzle/guzzle 8.0.1
https://github.com/guzzle/guzzle/releases/tag/8.0.17.15.2
Patch available: guzzle/guzzle 7.15.2
https://github.com/guzzle/guzzle/releases/tag/7.15.2Security fixes 8.0
Patch available: guzzle/guzzle 8.0.1 (PR #3908 merged 2026-07-26)
https://github.com/guzzle/guzzle/pull/3908Security fixes 7.15
Patch available: guzzle/guzzle 7.15.2 (PR #3907 merged 2026-07-26)
https://github.com/guzzle/guzzle/pull/3907commit 744101956d78 (guzzle/guzzle)
Patch available: guzzle/guzzle 7.15.2 (contains commit 744101956d78)
https://github.com/guzzle/guzzle/commit/744101956d78b7c1384d0cbf379db13e859167bfcommit 3aeea0406aab (guzzle/guzzle)
Patch available: guzzle/guzzle 8.0.1 (contains commit 3aeea0406aab)
https://github.com/guzzle/guzzle/commit/3aeea0406aab88cbbd86531313d7cebf8ae149a4Vendor Advisories for CVE-2026-69246(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(2)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| composer | guzzlehttp/guzzle @ 7.15.2 (fixes < 7.15.2) | — | ghsa |
| composer | guzzlehttp/guzzle @ 8.0.1 (fixes >= 8.0.0, < 8.0.1) | — | 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
(4 across 4 ecosystems)
Debian:12(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| guzzle | 7.11.0-1 ... 8.2.0-1 (19 versions) |
| — |
Debian:13(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| guzzle | 7.11.0-1 ... 8.2.0-1 (18 versions) |
| — |
Debian:14(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| guzzle | 7.11.0-1 ... 7.9.2-0.1 (11 versions) |
| — |
Packagist(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| guzzlehttp/guzzle | 8.0.0 |
| — |
Weakness Classification(4)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 45× 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 100 of 149 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. None are among the latest 100 rows. The 49 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.4% · 30th percentile
- 2026-11-01 07:40 UTCGHSA enrichmentGHSA-v5mv-p594-2x33 · GitHub severity HIGH · GitHub CVSS 7.2
- 2026-11-01 07:40 UTCEG score recompute
- 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.4% · 30th percentile
- 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.4% · 30th percentile
- 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.4% · 30th percentile
- 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.4% · 30th percentile
- 2026-10-27 19:53 UTCEG score recompute
- 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.4% · 30th percentile
- 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.4% · 30th percentile
- 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.4% · 30th percentile
- 2026-10-25 14:09 UTCEG score recompute
- 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.4% · 29th percentile
- 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.4% · 29th percentile
- 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.4% · 29th percentile
- 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.4% · 29th percentile
- 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.4% · 29th percentile
- 2026-10-20 08:58 UTCEG score recompute
- 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.4% · 29th percentile
- 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.4% · 29th percentile
- 2026-10-18 03:19 UTCEG score recompute
- 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.4% · 29th percentile
- 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.4% · 29th percentile
- 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.4% · 29th percentile
- 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 29th percentile
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- 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.4% · 29th percentile
- 2026-10-13 09:55 UTCEG score recompute
- 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 28th percentile
- 2026-10-12 15:44 UTCEG score recompute
- 2026-10-11 19:29 UTCEG score recompute
- 2026-10-11 16:45 UTCEG score recompute
- 2026-10-11 14:05 UTCEG score recompute
- 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 28th percentile
- 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 28th percentile
- 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 28th percentile
- 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 28th percentile
- 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 28th percentile
- 2026-10-06 23:45 UTCEG score recompute
- 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 28th percentile
- 2026-10-05 19:46 UTCEG score recompute
- 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 28th percentile
- 2026-10-04 23:44 UTCEG score recompute
- 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 28th percentile
- 2026-10-04 06:17 UTCEG score recompute
- 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 28th percentile
- 2026-10-03 02:13 UTCEG score recompute
- 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.4% · 28th percentile
- 2026-10-02 10:17 UTCEG score recompute
- 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 28th percentile
- 2026-10-01 02:31 UTCEG score recompute
- 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 28th percentile
- 2026-09-29 06:31 UTCEG score recompute
- 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.4% · 28th percentile
- 2026-09-27 18:14 UTCEG score recompute
- 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 28th percentile
- 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 28th percentile
- 2026-09-25 04:45 UTCEG score recompute
- 2026-09-23 23:47 UTCEG score recompute
- 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-22 21:25 UTCEG score recompute
- 2026-09-22 03:42 UTCEG score recompute
- 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-20 20:55 UTCEG score recompute
- 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-19 23:26 UTCEG score recompute
- 2026-09-19 08:00 UTCEG score recompute
- 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-18 05:10 UTCEG score recompute
- 2026-09-17 01:13 UTCEG score recompute
- 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-16 05:45 UTCEG score recompute
- 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-15 16:54 UTCEG score recompute
- 2026-09-13 23:52 UTCEG score recompute
- 2026-09-12 22:08 UTCEG score recompute
- 2026-09-11 20:24 UTCEG score recompute
- 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-10 18:09 UTCEG score recompute
- 2026-09-09 09:55 UTCEG score recompute
- 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-07 18:46 UTCEG score recompute
- 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-06 20:39 UTCEG score recompute
- 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-05 18:38 UTCEG score recompute
- 2026-09-05 15:31 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-04 16:18 UTCEG score recompute
- 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-03 08:31 UTCEG score recompute
- 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-01 20:57 UTCEG score recompute
- 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-30 23:44 UTCEG score recompute
- 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-30 10:53 UTCEG score recompute
- 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 11th percentile
- 2026-08-29 21:56 UTCEG score recompute
- 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.2% · 11th percentile
Related CVEs(same product + same CWE)
Same product
10 shownDebian:12:guzzle
Frequently asked(5)
What is CVE-2026-69246?
When was the CVE record for CVE-2026-69246 published?
Is CVE-2026-69246 actively exploited?
What is the CVSS score of CVE-2026-69246?
How do I remediate CVE-2026-69246?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-69246
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