{"items":[{"id":"NVI-00009101","kind":"vulnerability","title":"zip: AES Entry HMAC Authentication Bypass on Premature EOF","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-8hxf-qr8p-62x4","CVE-2026-115906"],"plain_summary":"GitHub lists this reviewed advisory for zip. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-5ff6ce49629b69655a69f55d13a6eb06"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-29T16:40:09.000Z","value":"6.5 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-b25ec32fc14baa7f1c3a5cd224a52ccd"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.151%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.04178. Missing scores are unknown.","source_id":"sr-5ff6ce49629b69655a69f55d13a6eb06"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-b25ec32fc14baa7f1c3a5cd224a52ccd","url":"https://github.com/advisories/GHSA-8hxf-qr8p-62x4","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-8hxf-qr8p-62x4","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:55:49.621Z"},{"id":"sr-5ff6ce49629b69655a69f55d13a6eb06","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-115906","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.374Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-b25ec32fc14baa7f1c3a5cd224a52ccd"],"technology":"zip","known_exclusions":[],"conditions_summary":"### Summary\n\nAn AES-encrypted (AE-x) entry's authentication code is verified only when the reader's byte counter lands exactly on zero. If the bounded entry reader reaches the archive's actual EOF before the attacker-controlled, header-declared `compressed_size`, the counter remains positive, the HMAC is never read or compared, and the truncated, unauthenticated plaintext is returned as a clean end of stream. A zero-payload entry also returns before authentication. An attacker who does not know the password can modify an archive so chosen or modified plaintext is accepted with no error.\n\n### Details\n\n`src/aes.rs:246-292`:\n\n```rust\nfn read(&mut self, buf: &mut [u8]) -> io::Result {\n    if self.data_remaining == 0 { // @audit insufficient check\n        return Ok(0);\n    }\n\n    // get the number of bytes to read, compare as u64 to make sure we can read more than\n    // 2^32 bytes even on 32 bit systems.\n    let bytes_to_read = self.data_remaining.min(buf.len() as u64) as usize;\n    let read = self.reader.read(&mut buf[0..bytes_to_read])?;\n    self.data_remaining -= read as u64;\n","public_affected_ranges":[">= 0.6.0, < 9.0.0"]}],"null_published_at":"2026-11-01T01:45:38.533Z","source_updated_at":"2026-10-29T16:40:09.000Z","source_disclosed_at":"2026-10-29T16:40:07.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:55:49.621Z"},{"id":"NVI-00009101","kind":"vulnerability","title":"zip: AES Entry HMAC Authentication Bypass on Premature EOF","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-8hxf-qr8p-62x4","CVE-2026-115906"],"plain_summary":"GitHub lists this reviewed advisory for zip. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-b25ec32fc14baa7f1c3a5cd224a52ccd"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-29T16:40:09.000Z","value":"6.5 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-b25ec32fc14baa7f1c3a5cd224a52ccd"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-b25ec32fc14baa7f1c3a5cd224a52ccd","url":"https://github.com/advisories/GHSA-8hxf-qr8p-62x4","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-8hxf-qr8p-62x4","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:55:49.621Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-b25ec32fc14baa7f1c3a5cd224a52ccd"],"technology":"zip","known_exclusions":[],"conditions_summary":"### Summary\n\nAn AES-encrypted (AE-x) entry's authentication code is verified only when the reader's byte counter lands exactly on zero. If the bounded entry reader reaches the archive's actual EOF before the attacker-controlled, header-declared `compressed_size`, the counter remains positive, the HMAC is never read or compared, and the truncated, unauthenticated plaintext is returned as a clean end of stream. A zero-payload entry also returns before authentication. An attacker who does not know the password can modify an archive so chosen or modified plaintext is accepted with no error.\n\n### Details\n\n`src/aes.rs:246-292`:\n\n```rust\nfn read(&mut self, buf: &mut [u8]) -> io::Result {\n    if self.data_remaining == 0 { // @audit insufficient check\n        return Ok(0);\n    }\n\n    // get the number of bytes to read, compare as u64 to make sure we can read more than\n    // 2^32 bytes even on 32 bit systems.\n    let bytes_to_read = self.data_remaining.min(buf.len() as u64) as usize;\n    let read = self.reader.read(&mut buf[0..bytes_to_read])?;\n    self.data_remaining -= read as u64;\n","public_affected_ranges":[">= 0.6.0, < 9.0.0"]}],"null_published_at":"2026-10-31T22:13:31.276Z","source_updated_at":"2026-10-29T16:40:09.000Z","source_disclosed_at":"2026-10-29T16:40:07.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T21:55:49.621Z"}],"next_cursor":null,"snapshot_revision":"42594"}