CVE-2026-44487 | Axios: Proxy-Authorization Credential Leak to Origin Server Across HTTP-to-HTTPS Redirect in Axios Node.js HTTP Adapter

Exp

Axios is a promise based HTTP client for the browser and Node.js. Prior to 0.32.0 and 1.16.0, Axios’s Node.js HTTP adapter may forward a Proxy-Authorization header to a redirected origin during specific proxy-to-direct redirect flows. This affects Node.js usage, where an initial HTTP request is sent through an authenticated HTTP proxy, redirects are followed, and the redirected URL is no longer proxied. Under affected redirect shapes, the final origin can receive the proxy credential that was intended only for the outbound proxy. This vulnerability is fixed in 0.32.0 and 1.16.0.

Published: 2026-06-11 Last update: 2026-07-22 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2026-44487 is rated High Exploit Risk (64.5/100): CVSS High severity, with low exploitation likelihood (EPSS 0.66%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2026-44487

EDB-ID Source Kind Published Link
nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2026-44487

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-30 0.43% 0.66% +0.23%
2 2026-06-15 0.04% 0.43% +0.39%
3 2026-06-12 0.04%

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-44487

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.2 4.0 HIGH
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network.
Attack complexity (AC:L)
Exploitation conditions are straightforward and stable.
Attack requirements (AT:P)
Additional preconditions must be present for exploitation.
Privileges required (PR:N)
No privileges are required.
User interaction (UI:N)
No user interaction is required.
Vulnerable system confidentiality impact (VC:H)
High confidentiality impact on the vulnerable system.
Vulnerable system integrity impact (VI:N)
No integrity impact on the vulnerable system.
Vulnerable system availability impact (VA:N)
No availability impact on the vulnerable system.
Subsequent system confidentiality impact (SC:N)
No confidentiality impact on subsequent systems.
Subsequent system integrity impact (SI:N)
No integrity impact on subsequent systems.
Subsequent system availability impact (SA:N)
No availability impact on subsequent systems.
Exploit maturity (threat) (E:X)
Not defined: no reliable threat intelligence; scoring assumes the worst case (equivalent to Attacked).
Confidentiality requirement (CR:X)
Not defined: insufficient information; scoring treats this like High (worst case).
Integrity requirement (IR:X)
Not defined: insufficient information; scoring treats this like High (worst case).
Availability requirement (AR:X)
Not defined: insufficient information; scoring treats this like High (worst case).
Modified attack vector (MAV:X)
Not defined: scoring uses the Base Attack Vector (AV).
Modified attack complexity (MAC:X)
Not defined: scoring uses the Base Attack Complexity (AC).
Modified attack requirements (MAT:X)
Not defined: scoring uses the Base Attack Requirements (AT).
Modified privileges required (MPR:X)
Not defined: scoring uses the Base Privileges Required (PR).
Modified user interaction (MUI:X)
Not defined: scoring uses the Base User Interaction (UI).
Modified vulnerable system confidentiality impact (MVC:X)
Not defined: scoring uses the Base VC metric.
Modified vulnerable system integrity impact (MVI:X)
Not defined: scoring uses the Base VI metric.
Modified vulnerable system availability impact (MVA:X)
Not defined: scoring uses the Base VA metric.
Modified subsequent system confidentiality impact (MSC:X)
Not defined: scoring uses the Base SC metric.
Modified subsequent system integrity impact (MSI:X)
Not defined: scoring uses the Base SI metric.
Modified subsequent system availability impact (MSA:X)
Not defined: scoring uses the Base SA metric.
Safety (supplemental) (S:X)
Not evaluated.
Automatable (supplemental) (AU:X)
Not evaluated.
Recovery (supplemental) (R:X)
Not evaluated.
Value density (supplemental) (V:X)
Not evaluated.
Vulnerability response effort (supplemental) (RE:X)
Not evaluated.
Provider urgency (supplemental) (U:X)
Not evaluated.
[email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
3.9 3.6 [email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
3.9 3.6 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

Weakness enumeration for CVE-2026-44487

GitHub Security Advisory for CVE-2026-44487

GHSA-p92q-9vqr-4j8v · Severity: high · Ecosystem: npm — Axios: Proxy-Authorization Credential Leak to Origin Server Across HTTP-to-HTTPS Redirect in Axios Node.js HTTP Adapter

OS Trackers for CVE-2026-44487

vendor priority summary link
debian not yet assigned CVE-2026-44487 not yet assigned priority: Debian including 1 source packages (node-axios), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 3, resolved 2. https://security-tracker.debian.org/tracker/CVE-2026-44487
redhat high https://access.redhat.com/security/cve/CVE-2026-44487
suse high CVE-2026-44487 severity important: SUSE including 57 source package names (cockpit, cockpit-bridge, …), 257 product×package rows across 28 product lines (SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS, SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS, … (28 product lines)): Known Not Affected 257. https://www.suse.com/security/cve/CVE-2026-44487/

Affected software / configurations for CVE-2026-44487

Vendor Product Version Raw CPE
axios axios < 0.32.0 cpe:2.3:a:axios:axios:*:*:*:*:*:node.js:*:*
axios axios >= 1.0.0, < 1.16.0 cpe:2.3:a:axios:axios:*:*:*:*:*:node.js:*:*

References for CVE-2026-44487

URL Tags
https://github.com/axios/axios/security/advisories/GHSA-p92q-9vqr-4j8v Exploit Mitigation Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:20889
https://access.redhat.com/errata/RHSA-2026:20938
https://access.redhat.com/errata/RHSA-2026:26234
https://access.redhat.com/errata/RHSA-2026:27044
https://access.redhat.com/errata/RHSA-2026:27063
https://access.redhat.com/errata/RHSA-2026:28964
https://access.redhat.com/errata/RHSA-2026:29082
https://access.redhat.com/errata/RHSA-2026:29197
https://access.redhat.com/errata/RHSA-2026:29864
https://access.redhat.com/errata/RHSA-2026:30650
https://access.redhat.com/errata/RHSA-2026:30651
https://access.redhat.com/errata/RHSA-2026:33155
https://access.redhat.com/errata/RHSA-2026:33160
https://access.redhat.com/errata/RHSA-2026:33163
https://access.redhat.com/errata/RHSA-2026:33173
https://access.redhat.com/errata/RHSA-2026:33183
https://access.redhat.com/errata/RHSA-2026:33574
https://access.redhat.com/errata/RHSA-2026:34374
https://access.redhat.com/errata/RHSA-2026:34525
https://access.redhat.com/errata/RHSA-2026:34527
https://access.redhat.com/errata/RHSA-2026:34530
https://access.redhat.com/errata/RHSA-2026:36611
https://access.redhat.com/errata/RHSA-2026:36754
https://access.redhat.com/errata/RHSA-2026:36820
https://access.redhat.com/errata/RHSA-2026:36882
https://access.redhat.com/errata/RHSA-2026:36883
https://access.redhat.com/errata/RHSA-2026:40262
https://access.redhat.com/errata/RHSA-2026:40768
https://access.redhat.com/errata/RHSA-2026:40792
https://access.redhat.com/errata/RHSA-2026:40795
https://access.redhat.com/errata/RHSA-2026:41031
https://access.redhat.com/errata/RHSA-2026:41055
https://access.redhat.com/errata/RHSA-2026:41064
https://access.redhat.com/errata/RHSA-2026:41066
https://access.redhat.com/errata/RHSA-2026:41928
https://access.redhat.com/errata/RHSA-2026:41951
https://access.redhat.com/errata/RHSA-2026:42078
https://access.redhat.com/errata/RHSA-2026:42085
https://access.redhat.com/errata/RHSA-2026:42142
https://access.redhat.com/errata/RHSA-2026:42146
https://access.redhat.com/errata/RHSA-2026:42796
https://access.redhat.com/security/cve/CVE-2026-44487
https://bugzilla.redhat.com/show_bug.cgi?id=2487948
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44487.json
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