CVE Explorer
CVE-2026-8368
LWP::UserAgent versions before 6.83 for Perl leak Authorization and Proxy-Authorization headers on cross-origin redirects.
On a 3xx response, the redirect handler strips only Host and Cookie before issuing the follow-up request. Caller-supplied Authorization and Proxy-Authorization headers are sent unchanged to the redirect target, including across scheme, host, or port changes.
A redirect to an attacker controlled host therefore discloses the caller's credentials to that host.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"collectionURL":"https://cpan.org/modules","defaultStatus":"unaffected","packageName":"libwww-perl","product":"LWP::UserAgent","programFiles":["lib/LWP/UserAgent.pm"],"programRoutines":[{"name":"LWP::UserAgent::request"}],"repo":"https://github.com/libwww-perl/libwww-perl","vendor":"OALDERS","versions":[{"lessThan":"6.83","status":"affected","version":"0","versionType":"custom"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:7f51f0bdc4de617425f5feb02beedeb0cca4c47d911d0fc04a48c88a3d14efce · sha256:a6ea7d231afade8b… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:7f51f0bdc4de617425f5feb02beedeb0cca4c47d911d0fc04a48c88a3d14efce · sha256:a6ea7d231afade8b… · /containers/adp/1/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-522","description":"CWE-522 Insufficiently Protected Credentials","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:7f51f0bdc4de617425f5feb02beedeb0cca4c47d911d0fc04a48c88a3d14efce · sha256:a6ea7d231afade8b… · /containers/cna/problemTypes/0/descriptions/0
Source references
5 source assertions{"url":"http://www.openwall.com/lists/oss-security/2026/05/12/7"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:7f51f0bdc4de617425f5feb02beedeb0cca4c47d911d0fc04a48c88a3d14efce · sha256:a6ea7d231afade8b… · /containers/adp/0/references/0
{"tags":["patch"],"url":"https://github.com/libwww-perl/libwww-perl/commit/9c4aeb6f2dd32f2b7eaf2d7827cade31ea6cb2c6.patch"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:7f51f0bdc4de617425f5feb02beedeb0cca4c47d911d0fc04a48c88a3d14efce · sha256:a6ea7d231afade8b… · /containers/cna/references/0
{"tags":["related"],"url":"https://github.com/libwww-perl/libwww-perl/pull/284"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:7f51f0bdc4de617425f5feb02beedeb0cca4c47d911d0fc04a48c88a3d14efce · sha256:a6ea7d231afade8b… · /containers/cna/references/3
{"tags":["issue-tracking"],"url":"https://github.com/libwww-perl/libwww-perl/pull/512"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:7f51f0bdc4de617425f5feb02beedeb0cca4c47d911d0fc04a48c88a3d14efce · sha256:a6ea7d231afade8b… · /containers/cna/references/2
{"tags":["release-notes"],"url":"https://metacpan.org/release/OALDERS/libwww-perl-6.83/changes"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:7f51f0bdc4de617425f5feb02beedeb0cca4c47d911d0fc04a48c88a3d14efce · sha256:a6ea7d231afade8b… · /containers/cna/references/1
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.